Convert the angle to degrees, minutes, and seconds.-54.19°
A. -54°21'24''
B. -54°11'24''
C. -54°11'14''
D. -54°21'14''
Answer: B
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Round the number to the nearest thousandth, nearest hundredth, and nearest tenth. Remember to round from the original number.167.638
A. 167.638, 167.64, 167 B. 167.64, 167.6, 167 C. 167.638, 167.63, 168 D. 167.638, 167.64, 167.6
Solve the problem. Round to the nearest tenth of a percent unless otherwise noted. The price of a printer was reduced from $400 to $300. What was the percent decrease?
A. 30% B. 75% C. 25% D. 33.3%
Balls numbered from 1 to 58 are placed in a container and stirred. If one is drawn at random, find the probability that the number is less than 8. ? Please enter your answer as a fraction.
What will be an ideal response?
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. 34.0%; $271 million B. 36.6%; $268 million C. 41.2%; $264 million D. 35.8%; $276 million