Add.(9x2 + 8x - 12) + (16x + 12)
A. 9x2 + 8x + 24
B. 9x2 + 24x - 24
C. 33x3
D. 9x2 + 24x
Answer: D
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Divide.34.56 ÷ 4.8
A. 72 B. 7.2 C. 8.2 D. 0.72
Find the mean and median using the graph of the distribution. Round to the nearest tenth if necessary. 
A. mean = 6.5; median = 6 B. mean = 6.5; median = 6.5 C. mean = 7; median = 6 D. mean = 6; median = 6
Write the number as an exponential expression, using the base shown. Check your result with a calculator.32 (base 2)
A. 25 B. 35 C. 52 D. 26
Solve. Give your answer as a mixed numeral.Brian was training to run a marathon. During the three-day period before the race he decided that he would train for a total of 10 hours. If he trained for 3
hours on the first day and 3
hours on the second day, how many hours would he need to train on the third day?
A. 4
hr
B. 3
hr
C. 3
hr
D. 3
hr