Introductory and intermediate algebra for college students 5th edition by blitzer test bank

Introductory and Intermediate Algebra for College Students 5th edition by Robert F Blitzer Test Bank Link full download test bank: https://findtestbanks.com/download/introductory-and-intermediatealgebra-for-college-students-5th-edition-by-blitzer-test-bank/ Link full download solution manual: https://findtestbanks.com/download/introductory-andintermediate-algebra-for-college-students-5th-edition-by-blitzer-solution-manual/ MULTIPLE CHOICE Choose the one alternative that best completes the statement or answers the question Determine whether the equation in one variable is linear 1) x - = 12 A) linear B) not linear Answer: A 2) x - = A) linear B) not linear Answer: B 3) = 10 x A) linear B) not linear Answer: B 4)7x + 15 = 21 A) linear B) not linear Answer: A 5) x + 26 = 15 11 A) linear B) not linear Answer: A 6) 2x + π = 0.6 A) linear B) not linear Answer: A 7)6 x - = A) linear B) not linear Answer: B 8)72.9x = 8.4 A) linear B) not linear Answer: A 9)3(x - 4) = A) linear B) not linear Answer: A 10) x + = A) linear B) not linear Answer: B 11) 14x - 29 = 26 A) linear B) not linear Answer: B 12) 2x = 5x A) linear B) not linear Answer: B Solve the equation 13) a - 13 = -2 A) {11} B) {15} C) {-11} D) {-15} B) {-23} C) {-13} D) {13} B) {-7} C) {23} D) {7} B) {30} C) {-8} D) {-30} B) {-8} C) {-30} D) {30} B) {16} C) {-14} D) {-16} B) C) {5} D) B) C) D) {1} C) -3 D) Answer: A 14) x + = -18 A) {23} Answer: B 15) x + 15 = A) {-23} Answer: B 16) 11 = b - 19 A) {8} Answer: B 17) -19 = b - 11 A) {8} Answer: B 18) -1 + s = 15 A) {14} Answer: B 19) + x = A) Answer: A 20) x + = 6 A) Answer: B 21) x + = - A) B) -1 Answer: C -7 22) x - = 16 A) 16 C) - 21 64 D) -1 B) C) D) B) {15} C) {19.7} D) {15.5} B) {7.8} C) {-7.8} D) {39} B) {9} C) {-13} D) {13} B) {-2.6} C) {-19.6} D) {9} B) {3} C) {1} D) {6} B) {3} C) {6} D) {8} B) {-8} C) {-48} D) {48} B) {25} C) {5} D) {-5} B) {4} C) {40} D) {-4} B) - 16 Answer: A 23) - + z = A) Answer: C 24) 2.1 + x = 17.6 A) {19.2} Answer: D 25) -23.4 - x = 15.6 A) {-39} Answer: A 26) 13 + 9p = 10p A) {-6} Answer: D 27) 9y = 8y - 2.6 A) {2.6} Answer: B 28) 14x - = 6x + 15 A) {4} Answer: B 29) 15x - - 9x = 26 A) {5} Answer: A 30) 4(y + 7) = 5(y - 4) A) {8} Answer: D 31) 2(2z - 5) = 3(z + 5) A) {7} Answer: B 32) 10y = 4y + + 5y A) {-40} Answer: B 33) -5a + + 6a = 13 - 26 A) {-44} B) {44} C) {18} D) {-18} B) {-3} C) {-8} D) {5} C) {-9.6} D) {23.6} Answer: D 34) -6b + + 4b = -3b + A) {8} Answer: D 35) -8.2 + 4x - 6.3 + 5x - 2.1 = 5.7 + 10x + 1.3 A) {-23.6} B) {9.6} Answer: A Use the given information to write an equation Let x represent the number described in the exercise Then solve the equation and find the number 36) The sum of a number and forty-four is fifty A) 44x = 50; 1.14 B) x ÷ 44 = 50; 2200 C) x + 44 = 50; D) x - 44 = 50; 94 C) 29 + 52 = x; 81 D) 29x = 52; 1.79 Answer: C 37) Twenty-nine increased by a number equals fifty-two A) 29 + x = 52; 23 B) 29 - x = 52; -23 Answer: A 38) If 239 is subtracted from a number, the result is 715 A) x - 239 = 715; -954 C) x - 239 = 715; 954 B) x + 715 = 239; -476 D) x + 239 = 715; 476 Answer: C 39) If 251 is added to a number, the result is 484 A) x - 251 = 484; 735 B) 251 + x = 484; -735 C) 251 + x = 484; 233 D) x + 251 = 484; -233 Answer: C Solve 40) The cost of having a car towed is given by the formula C = 3x + 50, where C is in dollars and x is the number of miles the car is towed Find the cost of having a car towed 14 miles A) $53 B) $92 C) $42 D) $82 Answer: B 41) The monthly cost of a certain long distance service is given by the formula C = 0.08t + 6.95 where C is in dollars and t is the amount of time in minutes called in a month Find the cost of calling long distance for 160 minutes in a month A) $19.75 B) $22.95 C) $18.75 D) $12.80 Answer: A 42) The amount of water in a leaky bucket is given by the formula f = 125 - 8t, where f is in ounces and t is in minutes Find the amount of water in the bucket after minutes A) 109 oz B) 117 oz C) 141 oz D) 16 oz Answer: A 43) The altitude above sea level of an airplane just after taking off from an airport on a high plateau is given by the formula h = 700t + 3182, where h is in feet and t is the time in minutes since take-off Find the altitude of the airplane after minutes A) 9482 ft B) 9382 ft C) 9582 ft D) 6300 ft Answer: A Solve the equation using the multiplication property of equality 44) 16 a = A) {16} B) {1} C) {0} D) {-16} B) {20} C) {9} D) {8} B) {-6} C) {-5} D) {5} B) {8} C) {-8} D) {16} B) {6} C) {40} D) B) {0} C) {1} D) {-11} B) {1} C) {-8} D) {-63} B) {48} C) {7} D) {-48} Answer: C n 45) = A) {1} Answer: B n 46) - = -2 A) {6} Answer: A 47) v =4 -4 A) {-16} Answer: A 48)8x = 48 A) {384} Answer: B 49)11x = A) {11} Answer: B 50)7a = -56 A) {63} Answer: C 51)-8x = -56 A) {2} Answer: C 52)- 42x = 36 A) B) -6 C) Answer: B D) -7 53) x = -8 A) {-1} B) {-72} C) {0} B) - 448 C) - B) {28} C) 63 B) C) - D) {1} Answer: B 54) 56 = - x A) {- 63} D) 512 - 496 Answer: A 55) x = 21 A) 87 Answer: B 56) 2x=9 A) D) 81 D) -2 73 -4 2 Answer: D 57) 8x + x = 72 A) {7} B) C) {8} D) B) {9} C) {8} D) {-9} B) {330} C) 15 22 D) {-7} Answer: C 58) -11x + x = -80 A) {-8} Answer: C 59) 3x + 19x = 15 A) 22 15 Answer: C Solve the equation 60) -z = -5 A) {-1} B) {-5} C) {0} D) {5} Answer: D 61) -x = -14 A) {-1} B) {14} C) {-14} Answer: B D) {0} Solve the equation using both the addition and multiplication properties of equality 62) 8r + 10 = 34 A) {20} B) {16} C) {5} D) {3} Answer: D 63) 5n - = 37 A) {15} B) {44} C) {40} D) {9} B) {-21} C) {2} D) {-17} B) {-14} C) {10} D) {2} B) {-16} C) {16} D) 41 B) {10} C) {-3} D) {6} B) {77} C) {-5} D) {6} B) C) B) {3} C) {-3} D) 21 13 B) {3} C) {4} D) {1} B) 14 19 C) Answer: D 64) -13 = 7x + A) {-2} Answer: A 65) -12 = -2x + A) {-18} Answer: C 66) -2x - 25 = -57 A) {-30} Answer: C 67) -3 = -3x + A) {3} Answer: A 68) -4x = 66 + 7x A) {-6} Answer: A 69) 10y - 35 = 5y A) {-7} -7 D) {7} Answer: D 70) -10y + 21 = -3y A) - 21 13 Answer: B 71) 12x - = 4x + 17 A) {6} Answer: B 72) -10y + = -10 + 9y A) 19 14 Answer: B - 19 14 D) 73) 5x - = 56 - 3x A) 32 B) 24 C) {-8} B) - C) - D) {8} Answer: D 74) 6x - 3x - = -2x A) Answer: D D) 5 Use the given information to write an equation Let x represent the number described in the exercise Then solve the equation and find the number 75) The product of three-fourths and a number is six A) + x = 6; 21 B) = 6x; C) - x = 6; -21 D) x = 6; 4 4 Answer: D 76) If thirty is divided by a number, the result is five A) 30 = 5; B) 30 - x = 5; 25 x Answer: A 77) A number subtracted from eighteen is four A) 18 - x = 4; 14 B) x - 18 = 4; 22 C) 30 = x; D) x = 5; 150 30 C) 18 - = x; 14 D) 18 + x = 4; -14 Answer: A Solve the problem d , where t is the time, d r is the distance, and r is the rate of travel At 60 miles per hour, what distance can be traveled in hours? A) 120 mi B) 48 mi C) 240 mi D) 480 mi 78) The time it takes to travel a given distance at constant speed is given by the formula t = Answer: C d , where t is the time, d r is the distance, and r is the rate of travel At 0.7 mile per minute, what distance can be traveled in 30 minutes? A) 42 mi B) 4.2 mi C) 10.5 mi D) 21 mi 79) The time it takes to travel a given distance at constant speed is given by the formula t = Answer: D m 80) To convert meters to feet, you can use the formula f = 0.3038, where f is the distance in feet and m is the distance in meters How many meters (to the nearest tenth) is 24 feet? A) 7.3 m B) 72.9 m C) 79.0 m D) 7.9 m Answer: A 81) Power is the time rate of doing work and is commonly measured in watts Power is given by the formula P= Wt , where P is power, W is work (in joules), and t is time in seconds If 800 watts of power are used in 27 seconds, how much work (in joules) was done? A) joules B) 2160 joules C) 30 joules D) 21,600 joules Answer: D 82) The speed of a ball dropped from a tower is given by the formula f = 32t where f is in feet per second and t is the number of seconds since the ball was dropped Find the speed of the ball after 10 seconds A) 320 ft/sec B) 32 ft/sec C) 310 ft/sec D) 10 ft/sec Answer: A 83) The formula C = 502x + 168 models the data for the cost to produce x units of a product, where C is given in dollars How many units can be produced for a cost of $451,968? A) 900 units B) 450 units C) 675 units D) 1800 units Answer: A 84) The weekly production cost C of manufacturing x calendars is given by C = 21 + 2x, where the variable C is in dollars What is the cost of producing 294 calendars? A) $588.00 B) $315.00 C) $609.00 D) $6176.00 Answer: C Solve the equation 85) - 6x = 3x - 2x - 31 A) 27 B) {5} C) 31 D) 31 B) 30 C) - D) - 10 B) {43} C) {27} D) {-27} B) {-12} C) {5} D) {12} B) {4} C) {2} D) {3} B) {-51} C) {9} D) {5} Answer: B 86) 5x - 10x - 2x = -12 - 30 A) {6} Answer: A 87) -6a + + 7a = - 30 A) {-43} Answer: D 88) -6b + + 4b = -3b + 12 A) {-7} Answer: C 89) 5x - + 2x = 7x + 11 - 8x A) {1} Answer: C 90) -7(x + 2) = -49 A) {-47} Answer: D 91) 6(2x - 1) = 24 A) 23 12 B) 25 12 C) B) {8} C) {9} D) {7} B) {7} C) {4} D) {5} B) {-2} C) {-14} D) {2} B) {-5} C) {5} D) {-30} B) {11} C) {-11} D) {29} B) {16} C) {13} D) {-13} D) Answer: D 92) 7x - (5x + 4) = 10 A) {6} Answer: D 93) 2(4t - 6) - = 22 A) {6} Answer: D 94) 3x + = 4(x + 2) A) {14} Answer: B 95) 4(5x + 1) + 23 = 14x - A) {-180} Answer: B 96) 3(y + 3) = 4(y - 5) A) {-29} Answer: D 97) 3(2z - 4) = 5(z + 5) A) {37} Answer: A 98) -3x - + 4(x + 1) = -7x + A) - 10 D) {-7} B) {75} C) {-3} D) {15} B) C) - 57 D) B) {18} C) {12} D) {15} B) {13} C) {5} D) {9} B) -3 C) Answer: C 99) 3(3x - 2) - 12 = 4x - A) {3} Answer: A 100) - 8(y + 7) = - 7y A) 55 Answer: C 101) 7(x + 2) + 12 = 3(x + 6) + A) {0} Answer: A 102) - 3(x + 2) = - 4(x + 1) A) {3} Answer: A 10 282) 2x - ≥ A) [-1, ∞) -8 -7 -6 -5 -4 -3 -2 -1 -7 -6 -5 -4 -3 -2 -1 -3 -2 -1 10 -1 10 B) (-∞, -1] -8 C) [3, ∞) -4 D) (-∞, 3] -4 -3 -2 Answer: C 283) - 2x ≥ -10 A) (-∞, 9] 10 11 12 13 14 15 16 10 11 12 13 14 15 16 -5 -4 -3 -2 -1 -5 -4 -3 -2 -1 B) [9, ∞) C) (-∞, 1] -6 D) [1, ∞) -6 Answer: A 43 284) 11 - 3(3 - x) ≤ -22 A) (-∞, -8] -10 -8 -6 -4 -2 -8 -6 -4 -2 -8 -6 -4 -2 -8 -6 -4 -2 B) (-∞, -7] -10 C) (-∞, -8) -10 D) [-8, ∞) -10 Answer: A 285) 8x - 10 ≤ 2x - 13 A) B) (-∞, 6] [-3, ∞) -12 -10 -8 -6 -4 -2 -12 -10 -8 -6 -4 -2 C) -∞, - 10 12 10 12 D) -6 -5 -4 -3 -2 -1 -∞, - -6 -5 -4 -3 -2 -1 Answer: D 44 286) 5t + ≥ 3t + A) (-∞, 2] -1 8 -4 -3 -2 -1 -3 -2 -1 B) [2, ∞) -1 C) [-2, ∞) -5 D) (-∞, -2] -5 -4 Answer: C 287) 5x - < 6(x + 3) A) (-∞, 23) 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 B) (-23, ∞) -30 -29 -28 -27 -26 -25 -24 -23 -22 -21 -20 -19 -18 -17 -16 C) (-∞, -13) -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 D) (13, ∞) 10 11 12 13 14 15 16 17 18 19 20 Answer: B 45 288) 20x + 40 > 5(3x + 6) A) (-∞, -2) -5 -4 -3 -2 -1 -4 -3 -2 -1 -4 -3 -2 -1 -4 -3 -2 -1 -8 -7 -6 -5 -4 -3 -8 -7 -6 -5 -4 -3 -8 -7 -6 -5 -4 -3 -8 -7 -6 -5 -4 -3 B) (-∞, -2] -5 C) [-2, ∞) -5 D) (-2, ∞) -5 Answer: D 289) -5(2x - 9) < -15x + 15 A) (-6, ∞) -9 B) (-∞, -6) -9 C) [-6, ∞) -9 D) (-∞, -6] -9 Answer: B 46 290) -9x + - 2x < - 13x + A) (7, ∞) 10 -3 -2 -1 -3 -2 -1 10 B) (-∞, -1) -4 C) (-1, ∞) -4 D) (-∞, 7) Answer: B x 291) + 10 ≤ A) [-6, ∞) -16 B) (-∞, -4) -12 -8 -4 12 16 -16 C) (-∞, 5] -16 -12 -8 -4 12 16 -8 -4 12 16 D) (-∞, -6] -12 -8 -4 12 16 -16 Answer: D 47 -12 292) 25n - 35 ≤ 5(4n - 13) A) (-∞, -6] -10 -9 -8 -7 -6 -5 - -9 -8 -7 -6 -5 - -9 -8 -7 -6 -5 - -9 -8 -7 -6 -5 - B) (-6, ∞) -10 C) [-6, ∞) -10 D) (-∞, -6) -10 Answer: A 293) (2x - 1) < -2 A) (-∞, - 1] -10 -8 -6 -4 -2 B) (-∞, - 1) 10 C) [1, ∞) -10 -8 -6 -4 -2 -10 -8 -6 -4 -2 10 -6 -4 -2 10 D) (-∞, 1) 10 -10 -8 Answer: B Solve the inequality 294) x + ≥ x - A) - 6, ∞ B) -∞, - C) ∅ D) (-∞, ∞) B) (-∞, 5) C) (-∞, ∞) D) ∅ B) (-∞, ∞) C) (-∞, 11) D) (11, ∞) Answer: D 295) 9x + > 9(x + 3) A) (5, ∞) Answer: D 296) 10x - 11 > 10(x - 9) A) ∅ Answer: B 48 297) 3x ≤ 3(x + 7) A) ∅ Answer: D B) (-∞, 7] C) (-∞, 3] D) (-∞, ∞) B) (-∞, ∞) C) (-∞, 0] D) ∅ B) (-∞, 9) C) ∅ D) (-∞, ∞) 298) 3x - ≥ 2(x - 1) A) [0, ∞) Answer: A 299) -3(-3 - x) < 5x + 21 - 12 - 2x A) (-∞, 0) Answer: C Solve the problem 300) Claire has received scores of 85, 88, 87, and 80 on her algebra tests What is the minimum score she must receive on the fifth test to have an overall test score average of at least 82? (Hint: The average of a list of numbers is their sum divided by the number of numbers in the list.) A) 70 B) 68 C) 71 D) 69 Answer: A 301) A certain car has a weight limit for all passengers and cargo of 1107 pounds The four passengers in the car weigh an average of 165 pounds Use an inequality to find the maximum weight of the cargo that the car can handle 1107 369 A) at most 447 lb B) at most 942 lb C) at most lb D) at most lb 55 Answer: A 302) A certain store has a fax machine available for use by its customers The store charges $2.05 to send the first page and $0.60 for each subsequent page Use an inequality to find the maximum number of pages that can be faxed for $6.85 A) at most 49 pages B) at most pages C) at most pages D) at most 11 pages Answer: C 303) An archery set containing a bow and three arrows costs $74 Additional arrows can be purchased for $9 each Gerri has $128 to spend on the set and additional arrows Including the arrows in the set, what is the maximum total number of arrows Gerri can purchase? A) at most arrows B) at most arrow(s) C) at most arrows D) at most 14 arrows Answer: A 304) When making a long distance call from a certain pay phone, the first three minutes of a call cost $2.95 After that, each additional minute or portion of a minute of that call costs $0.45 Use an inequality to find the maximum number of minutes one can call long distance for $7.00 A) at most 12 B) at most C) at most 16 D) at most Answer: A 305) It takes 24 minutes to set up a candy making machine Once the machine is set up, it produces 30 candies per minute Use an inequality to find the number of candies that can be produced in hours if the machine has not yet been set up A) at most 5040 candies C) at most 120 candies B) at most 6480 candies D) at most 2880 candies Answer: B 49 Solve the equation 306)-4x - = A) {4} B) {20} C) {24} D) {-4} Answer: D 307)5x + = 3x - A) -9 C) D) -2 B) {- 1} C) D) - B) {26} C) {2} D) {6} B) {-13} C) {-12} D) {3} B) {2} C) {-1} D) {-2} B) {7} C) {5.1} D) {-33} B) Answer: B 308)9x + 2(-2x - 6) = - 9x A) {1} Answer: A 309)4(2y - 3) = 7(y + 2) A) {-2} Answer: B 310)- x = -9 A) {27} Answer: A 311) x + = x + 5 7 A) {1} Answer: C 312)1.3 - 6x = -27.4 - 1.9x A) {4.8} Answer: B Solve the problem 313) In one state, speeding fines are determined by the formula F = 8(x - 60) + 75, where F is the cost, in dollars, of the fine if a person is caught driving x miles per hour If the fine comes to $275, how fast was the person driving? A) 87 mph B) 85 mph C) 83 mph D) 95 mph Answer: B Solve the formula for the specified variable 314) V = lwh for h A) h = Vlw B) h = lw V C) h = Answer: C 50 V lw D) h = Vl w 315) w = P - 2l for l A) l = 2P - 4w B) l = P + 2w C) l = P - 2w D) l = B) 60 C) 0.06 D) 0.6 B) 10 C) 24.025 D) 2402.5 B) 35% C) 5.6% D) 560% P - 2w Answer: C Solve the problem 316) What is 6% of 10? A) Answer: D 317) 15.5 is 155% of what? A) 0.1 Answer: B 318) 1.4 is what percent of ? A) 0.35% Answer: B 319) Four times a number added to times the number is 65 What is the number? A) 7.2 B) 0.6 C) D) -7.2 Answer: C 320) The president of a certain university makes three times as much money as one of the department heads If the total of their salaries is $290,000, find each worker's salary A) president's salary = $72,500; department head's salary = $217,500 B) president's salary = $145,000; department head's salary = $72,500 C) president's salary = $217,500; department head's salary = $72,500 D) president's salary = $21,750; department head's salary = $7250 Answer: C 321) A promotional deal for long distance phone service charges a $15 basic fee plus $0.05 per minute for all calls If Joe's phone bill was $47 under this promotional deal, how many minutes of phone calls did he make? Round to the nearest integer, if necessary A) 1240 B) 640 C) D) Answer: B 322) A rectangular carpet has a perimeter of 180 inches The length of the carpet is 42 inches more than the width What are the dimensions of the carpet? A) length: 90 in.; width: 78 in B) length: 81 in.; width: 57 in C) length: 66 in.; width: 24 in D) length: 90 in.; width: 66 in Answer: C 323) Sales at a local ice cream shop went up 30% in years If 18,000 ice cream cones were sold in the current year, find the number of ice cream cones sold years ago Round to the nearest cone when necessary A) 5400 ice cream cones B) 13,846 ice cream cones C) 60,000 ice cream cones D) 12,600 ice cream cones Answer: B 51 Find the area of the figure 324) 12 ft ft 19 ft A) 133 ft B) 114 ft C) 66.5 ft 2 D) 42 ft Answer: C 325) km 11.4 km 17 km A) 193.8 km B) 296.4 km C) 102.6 km D) 148.2 km Answer: D 326) 21 m 26 m 13 m 10 m A) 403 m B) 377 m C) 416 m 2 D) 507 m Answer: A Find the volume of the figure Where applicable, express answers in terms of π 327) yd 15 yd yd A) 270 yd B) 135 yd C) 1350 yd Answer: A 52 D) 108 yd 328) 10 ft ft A) 700 ft B) 70π ft C) 700π ft 3 D) 100π ft Answer: C Solve the problem 329) What will it cost to cover a rectangular floor measuring 90 feet by 50 feet with square tiles that measure feet on each side if a box of 10 tiles costs $18 per box? A) $450 B) $900 C) $2700 D) $38 Answer: B 330) A sailboat has a triangular sail with an area of 42 square feet and a base that measures feet Find the height of the sail A) 28 ft B) 14 ft C) 21 ft D) ft Answer: B 331) In a triangle, one angle is times as large as another The measure of the third angle is 140° greater than that of the smallest angle Find the measure of each angle A) 15°, 30°, 135° B) 10°, 20°, 150° C) 20°, 40°, 120° D) 10°, 20°, 140° Answer: B 332) How many degrees are there in an angle that measures 8° more than the measure of its compliment? A) 41° B) 94° C) 49° D) 86° Answer: C 53 Express the solution set of the inequality in interval notation and graph the interval 333) x > -2 -7 -6 -5 -4 -3 -2 -1 A) (-∞, -2] -7 -6 -5 -4 -3 -2 -1 -6 -5 -4 -3 -2 -1 -6 -5 -4 -3 -2 -1 -6 -5 -4 -3 -2 -1 B) (-∞, -2) -7 C) [-2, ∞) -7 D) (-2, ∞) -7 Answer: D 334) x ≤ -5 -7 -6 -5 -4 -3 -2 -1 A) (-∞, -5] -7 -6 -5 -4 -3 -2 -1 -6 -5 -4 -3 -2 -1 -6 -5 -4 -3 -2 -1 -6 -5 -4 -3 -2 -1 B) [-5, ∞) -7 C) (-∞, -5) -7 D) (-5, ∞) -7 Answer: A 54 Solve the inequality and graph the solution set on a number line 335) y4 ≤ -2 A) (-8, ∞) -11 -10 -9 -8 -7 -6 -5 -10 -9 -8 -7 -6 -5 -10 -9 -8 -7 -6 -5 -10 -9 -8 -7 -6 -5 B) [-8, ∞) -11 C) (-∞, -8] -11 D) (-∞, -8) -11 Answer: C 336) 24 - 4x ≥ -8 A) [-4, ∞) -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 3 10 11 12 13 14 15 10 11 12 13 14 15 -9 -8 -7 -6 -5 -4 -3 -2 B) [8, ∞) C) (-∞, 8] D) (-∞, -4] -11 -10 -1 Answer: C 55 337) 2x + < 3(x - 1) A) (-2, ∞) -9 -8 -7 -6 -5 -4 -3 -2 -1 -9 -8 -7 -6 -5 -4 -3 -2 -1 -2 -1 10 11 -4 -3 -2 -1 B) (-∞, -4) -11 -10 C) (4, ∞) -3 D) (-∞, 2) -5 Answer: C Solve the problem 338) Claire received scores of 85, 88, 87, and 80 on her algebra tests What score must she receive on the fifth test to have an overall test score average of at least 82? A) at least 70 B) at most 70 C) at least 71 D) at most 71 Answer: A 339) The length of a rectangle is 26 feet For what widths is the perimeter less than 68 feet? A) widths less than 16 ft B) widths less than ft C) widths less than 21 ft D) widths less than 42 ft Answer: B 56 ... 15% of students at a university attended a lecture If 4000 students are enrolled at the university, about how many students attended the lecture? A) 6000 students B) 600 students C) 60,000 students. .. D) 60 students Answer: B The pie chart below shows the number of pizzas consumed by college students in a typical month Use the chart to answer the question 176) What percent of college students. .. typical month? A) 450 students B) 8500 students C) 4500 students D) 850 students Answer: C Solve the problem 181) Due to a lack of funding, the number of students enrolled at City College went from