Find the exact value of the sum.cos 105° - cos 15°
A. 
B. - 
C. 
D. - 
Answer: B
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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(1 - x)
B. C(x) = 225
+ 150(5280 - x)
C. C(x) = 225(650 - x) + 150(1 - x)
D. C(x) = 150
+ 225(5280 - x)
The following line graph represents data pertaining to water flows over a dam. Use the graph to answer the following question(s).
Which month saw the highest water flow and which saw the lowest?
A. March and January B. November and April C. March and October D. February and October
Write the ratio as a fraction in simplest form.2
to 2
A. 
B. 
C. 
D. 
Write the whole number in words.9,300,695
A. nine million, three thousand, six hundred ninety-five B. ninety-three thousand, six hundred ninety-five C. nine million, three hundred thousand, six hundred ninety-five D. nine million, thirty thousand, six hundred ninety-five