Multiply and, if possible, simplify.
? 
A. 
B. 
C. 
D. 7
Answer: D
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Solve the equation.2 + 
= 
A. 
B. 
C. 
D. 
Suppose that the annual rate of inflation averages 4% over the next 10 years. With this rate of inflation, the approximate cost C of goods or services during any year in that decade will be given by 
, 
where t is time in years and P is the present cost. If the price of an oil change for your car is presently $25.95,
estimate the price 10 years from now. Round your answer to two decimal places. A. $39.95 B. $40.41 C. $41.95 D. $43.41 E. $38.41
Solve the problem.A power plant is located on a river that is 600 feet wide. To lay a new cable from the plant to a location in a city 2 miles downstream on the opposite side costs $175 per foot across the river and $125 per foot along the land. Suppose that the cable goes from the plant to a point Q on the opposite side that is x feet from the point P directly opposite the plant. Write a function C(x) that gives the cost of laying the cable in terms of the 
A. C(x) = 175(600 - x) + 125(2 - x)
B. C(x) = 175
+ 125(2 - x)
C. C(x) = 175
+ 125(10,560 - x)
D. C(x) = 125
+ 175(10,560 - x)
Simplify the expression and combine like terms.5p2 + 7p3 - 9p2 - 5p3
A. -4p2 + 2p3 B. -2p2p3 C. -2p2 D. 12p2 - 14p3