Solve the problem.Mara can type 51 words per minute. How many words would she type in 
hour (15 minutes)?
A. 765 words
B. 191 words
C. 13 words
D. 204 words
Answer: A
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Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve 
- 4 ? x ? 4, about the x-axis (dimensions are in feet). If a cubic foot holds 7.481 gallons and the helicopter gets 3 miles to the gallon, how many additional miles will the helicopter be able to fly once the tank is installed (to the nearest mile)?
A. 150 B. 75 C. 301 D. 100
Evaluate the integral.
A. 
B. 9
C. 27
D. 
The population N, in thousands, of a small town after t years is given in the table below. Use exponential regression to model the population as a function of time. Round your answer to two decimal places. t 2 4 6 8 10 N 7.70 5.44 4.61 4.07 3.15?
A. ?
B. ?
C. ?
D. 
Evaluate the expression for the given replacement values.x - 3y, for x = 32.3, y = 8.2
A. 21.1 B. 7.70 C. 248.46 D. 72.30