Solve the problem.Fred bicycles 4 km/h slower than Samantha. In the time it takes Fred to bicycle 30 km, Samantha travels 42 km. How fast does Fred bicycle?
A. 14 km/h
B. 10 km/h
C. 20 km/h
D. 6 km/h
Answer: B
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Solve the problem.Find the volume of the solid generated by revolving the region in the first quadrant bounded by the coordinate axes, the curve y = e-2x, and the line x = 5 about the y-axis.
A. - 
?(1 + 11 e-10)
B. 
?(1 - 11 e-10)
C. 
?(1 - 10 e-10)
D. 
?(1 - 9 e-10)
The speed for certain animals is related to the stride length by a power function. The value of the power in this function is 
. If the stride length is multiplied by 1.09, how is the speed affected? Round your answer to two decimal places if necessary.
?
A. Speed is multiplied by 1.05. B. Speed is multiplied by 1.09. C. Speed is multiplied by 1.49. D. Speed is multiplied by 1.63.
Provide an appropriate response.Solve for the variable: 
p + 
= 
A. 15
B. - 
C. 
D. 
Solve the problem.BJ can overhaul a boat's diesel inboard engine in 20 hours. His apprentice takes 60 hours to do the same job. How long would it take them working together assuming no gain or loss in efficiency?
A. 80 hr B. 15 hr C. 6 hr D. 12 hr