Solve the problem. A function that might describe the entire Laffer curve is 
where y is the government revenue in hundreds of thousands of dollars from a tax of x percent, with the function valid for 
Find the revenue from a tax rate of 60%. Round your answer to the nearest billion.
A. $768 billion
B. $738 billion
C. $668 billion
D. $793 billion
Answer: A
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Using Green's Theorem, find the outward flux of F across the closed curve C.F = (6x + 2y)i + (5x - 4y)j; C is the region bounded above by y = -5x2 + 144 and below by 
in the first quadrant
A. 768 B. - 3948 C. - 1128 D. -1144
Decide whether the problem is an equation or an expression.
= 
- 8
A. Equation B. Expression
The given point is on the graph of y = f(x). Find a point on the graph of y = g(x).g(x) = f(x - 1); (7, 20)
A. (6, 20) B. (7, 19) C. (8, 20) D. (7, 21)
Solve the problem.Ariel, a marine biologist, models a population P of crabs, t days after being left to reproduce, with the function 
. Assuming that this model continues to be accurate, when will this population become extinct? (Round to the nearest day.)
A. 1512 days B. 707 days C. 911 days D. 547 days