Match the graph to one of the polar equations. 
A. r = 6 sin ?
B. r = 3 + cos ?
C. r = 3 + sin ?
D. r = 6 cos ?
Answer: B
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A bag contains 6 cherry, 3 orange, and 2 lemon candies. You reach in and take 3 pieces of candy at random. Find the probability.All lemon
A. .1212 B. .061 C. 0 D. 1
Solve the problem.A parallelogram has sides of length 
and 
If the longer diagonal has a length of 
what is the angle opposite this diagonal? Give your answer to the nearest tenth of a degree.
A. 95.0° B. 62.9° C. 28.2° D. 66.3°
Solve.Each day the commuter train transports x passengers to or from the city at $1.75/passenger. The daily fixed cost for running the train is $1200. Write an equation that relates the daily profit, P, in dollars to the number of passengers each day. Then use the equation to find the daily profit when the train has 920 passengers in a day.
A. P = 1200 - 1.75x; $410 B. P = 1.75x; $1610 C. P = 1.75x - 1200; $410 D. P = 1.75x + 1200; $2810
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. 29.7%; $467 million B. 26.5%; $469 million C. 28.1%; $470 million D. 31.4%; $464 million