Find the average of the set of numbers.
and 
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.The price P of a certain computer system decreases immediately after its introduction and then increases. If the price P is estimated by the formula P = 130t2 - 2500t + 6500, where t is the time in months from its introduction, find the time until the minimum price is reached.
A. 19.2 months B. 38.5 months C. 9.6 months D. 12.5 months
Solve the problem.Find the height of a moving box if its length is 30 in., its width is 33 in., and its surface area is 
Assume that the surface area includes the top of the moving box.
A. 13 in. B. 12,870 in. C. 33 in. D. 30 in.
Use the appropriate formula to solve the problem.Levi borrowed $5709 at 9% simple interest for 6 months. How much will the interest amount to? What is the total amount that Levi will have to pay back at the end of 6 months? Round answers to the nearest cent if necessary.
A. $259.06; $5968.06 B. $256.91; $5965.91 C. $214.09; $5923.09 D. $299.72; $6008.72
Identify the numerical coefficient of the term.x
A. x B. -1 C. 1 D. 0