Solve the problem.An oil well off the Gulf Coast is leaking, with the leak spreading oil over the surface of the gulf as a circle. At any time t, in minutes, after the beginning of the leak, the radius of the oil slick on the surface is 
Find the area A of the oil slick as a function of time.
A. A(r(t)) = 16?t
B. A(r(t)) = 16?t2
C. A(r(t)) = 16t2
D. A(r(t)) = 4?t2
Answer: B
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Find the volume of the solid generated by revolving the region about the given line.The region in the second quadrant bounded above by the curve y = 4 - x2, below by the x-axis, and on the right by the y-axis, about the line x = 1
A. 
?
B. 8?
C. 
?
D. 
?
Solve the problem.An election is held among five candidates (A, B, C, D, and E). There are 37 voters. Using the method of pairwise comparisons, A, B, and C win one pairwise comparison each. D wins three pairwise comparisons, and E wins all the rest. In this election
A. E is a Condorcet candidate. B. There is no Condorcet candidate. C. D is a Condorcet candidate. D. Cannot be determined from the information given. E. none of these
Write an inequality to describe the half-space consisting of all points to the left of a plane parallel to the xz-plane and 11 units to the right of it.
What will be an ideal response?
Find the mean for the list of numbers.Prices of shoes in Sonya's closet: $21.21, $54.08, $39.15, 
Round answer to the nearest cent.
A. $39.15 B. $21.21 C. $36.00 D. $30.00