Solve the problem.Economists use what is called a Leffer curve to predict the government revenue for tax rates from 0% to 100%. Economists agree that the end points of the curve generate 0 revenue, but disagree on the tax rate that produces the maximum revenue. Suppose an economist produces this rational function 
where R is revenue in millions at a tax rate of x percent. Use a graphing calculator to graph the function. What tax rate produces the maximum revenue? What is the maximum revenue?
A. 38.4%; $383 million
B. 27.0%; $379 million
C. 28.8%; $272 million
D. 30.9%; $382 million
Answer: D
Mathematics
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Simplify using the order of operations.
A. -3 B. 2 C. -2 D. 3
Mathematics
Find a formula for the inverse of the function described below.32° Fahrenheit = 0° Celsius. A function that converts temperatures in Celsius to those in Fahrenheit is 
.
A. f-1(x) = x + 32
B. f-1(x) = 
(x + 32)
C. f-1(x) = 
(x - 32)
D. f-1(x) = 
x + 32
Mathematics
If 
with A in QIV, find
What will be an ideal response?
Mathematics
Divide. Write the answer in lowest terms and as a whole or mixed number where possible.24 ÷ 
A. 24
B. 3
C. 168
D. 
Mathematics