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)
Answer: C
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the x-axis.y = 9x2, y = 9
A. 
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B. 
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C. 
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D. 
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Even with most of the problem missing, it is possible to tell whether a suggested answer is reasonable. Determine whether the answer given is reasonable. If it is unreasonable, move the decimal point or insert a decimal point to make the answer reasonable.How tall is the child?42 inches
A. Reasonable B. Unreasonable, should be 0.42 inches C. Unreasonable, should be 4.2 inches D. Unreasonable, should be 420 inches
Translate to a formula, then use the formula to solve the problem. Round the answer to the nearest whole number if necessary.The surface area of a box is equal to twice the sum of its length times its width, its length times its height, and its width times its height. Find the surface area of a box with a length of 20.1 cm, a width of 12.4 cm, and a height of 6.4 cm. 
A. 914 cm2 B. 835 cm2 C. 1156 cm2 D. 457 cm2
Determine whether the relation represents a function. If it is a function, state the domain and range.{(-3, 11), (-2, 6), (0, 2), (2, 6), (4, 18)}
A. function domain: {11, 6, 2, 18} range: {-3, -2, 0, 2, 4} B. function domain: {-3, -2, 0, 2, 4} range: {11, 6, 2, 18} C. not a function