The eccentricity is given of a conic section with one focus at the origin, along with the directrix corresponding to that focus. Find a polar equation for the conic section. e = 1/2, y = 9
A. r = 
B. r = 
C. r = 
D. r = 
Answer: A
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Use the real estate amortization table to find the monthly payment for the loan.
What is the monthly payment on a 25-year loan of $101,300 if the annual interest rate is 
%?
A. $716.19 B. $708.09 C. $748.61 D. $816.48
Use a proportion to solve the problem.On April 26, 2005, 1 U.S. dollar was worth about 11.059 Mexican pesos. How much would 450 U.S. dollars be worth in Mexican pesos?
A. $4976.55 B. $40.69 C. $40.21 D. $4909.50
Convert the angle in radians to degrees. Express the answer in decimal form, rounded to two decimal places.
A. 81.03° B. 80.15° C. 0.09° D. 0.02°
Solve the problem.The stadium vending company finds that sales of hot dogs average 31,000 hot dogs per game when the hot dogs sell for $2.50 each. For each 50 cent increase in the price, the sales per game drop by 5000 hot dogs. What price per hot dog should the vending company charge to realize the maximum revenue?
A. $3.10 B. $3.05 C. $0.60 D. $2.80