Solve the problem.A power plant is located on a river that is 650 feet wide. To lay a new cable from the plant to a location in a city 1 mile downstream on the opposite side costs $225 per foot across the river and $150 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) = 225
+ 150(5280 - x)
B. C(x) = 225(650 - x) + 150(1 - x)
C. C(x) = 225
+ 150(1 - x)
D. C(x) = 150
+ 225(5280 - x)
Answer: A
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bounded by the paraboloid 
and the xy-plane.
A. 
?
B. 
?
C. 
?
D. 
?
Solve the problem.A paint mixture contains 48 gallons of base for every gallon of color. In 1323 gallons of paint, how many gallons of color are there?
A. 27 gallons B. 661 gallons C. 441 gallons D. 1296 gallons
Perform the indicated operation. Simplify, if possible.
+ 
- 
A. - 
B. 
C. 
D. - 
Solve. Answer with a complete sentence.Find the area of a rectangle measuring 4.2 yards by 13.71 yards.
A. The area of the rectangle is 17.64 square yards. B. The area of the rectangle is 115.164 square yards. C. The area of the rectangle is 17.91 square yards. D. The area of the rectangle is 57.582 square yards.