1.   An infant weighs 7 pounds at birth. Assuming that she gains 1 pound every 2 weeks, how much will she weigh in 10 weeks?
    A. 5 pounds B. 7 pounds
    C. 17 pounds D. 12 pounds
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  2.   How many customer service ratings above 80 did the company receive?
   
    A. 16 B. 12
    C. 2 D. 5
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  3.   The mean is the _______ of a set of numbers.
    A. highest number B. most frequent
    C. middle number D. arithmetic average
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  4.   If the number 178,651 is rounded to 179,000 and plotted on a stem and leaf plot as 17|9, how would you plot 151,205?
    A. 151|2 B. 15|2
    C. 15|1 D. 1|15
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  5.   Find the absolute value of 4.
    A. B. -4
    C. D. 4
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  6.   Order the integers 20, -23, 15, -15, and 20 from least to greatest.
    A. 23, -20, -15, 15, 20 B. 15, 20, -15, -20, -23
    C. 15, -15, 20, -20, -23 D. 15, -20, -23, 15, 20
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  7.   Solve -18 = 9z 9.
    A. 2 B. 1
    C. 1 D. 2
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  8.   Find the circumference of the circle. Use for .
   
    A. 132 mm B. 21 mm
    C. 66 mm D. 126 mm
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  9.   Write as a decimal.
    A. 0.085 B. 8.5
    C. 0.85 D. 0.805
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  10.   Eighteen is what percent of seventy-two?
    A. 30 B. 35
    C. 25 D. 40
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  11.   Evaluate 7 × (a - 4) if a = 9.
    A. 28 B. 35
    C. 59 D. 63
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  12.   Evaluate ab + 8 if a = 4 and b = 7
    A. 36 B. 55
    C. 60 D. 28
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  13.   Ben races motorcycles for fun. So far, his lap times, in seconds, are 32, 35, 33, and 32. What time must Ben get on his final lap for his average lap time to be 32.6?
    A. 33 B. 32.6
    C. 32 D. 31
    Hint

  14.   In the expression 18 is 20% of 90, 90 is the _____.
    A. percent proportion B. base
    C. percentage D. rate
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  15.   Mrs. Robinson bought each of her two daughters a red, white, and blue striped sweater. Her total came to $33.30. Find an equation that shows how much each sweater cost. Use s to represent of the cost of 1 sweater.
    A. 2 + s = 33.3 B. = 33.3
    C. 2s = 33.3 D. s - 2 = 33.3
    Hint

  16.   The Ride Away Bike Shop has 27 mountain bikes and 34 road bikes. Find the expression that represents the number of tires in the Ride Away Bike Shop.
    A. 2(27 + 34) B. 34 + 27
    C. 27 × 27 + 34 × 34 D. 2(27) × 2(34)
    Hint

  17.   The scatter plot shows the number of students per computer in U.S. public schools. Predict the number of students per computer in 2006.
   
    A. 5 B. 0
    C. 2 D. 8
    Hint

  18.   The table shows approximately the number of mobile phone users in each age group. Find the number of phone users aged 12-17 as a fraction of the number of mobile phone users aged 55 and over in simplest form.
   
    A. B.
    C. D.
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  19.   Estimate 238% of 74.
    A. 180 B. 140
    C. 160 D. 120
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  20.   82 is what percent of 463? Round to the nearest tenth.
    A. 177.1% B. 17.8%
    C. 1.8% D. 17.7%
    Hint



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