Solve the problem.The manufacturer of a CD player has found that the revenue R (in dollars) is 
when the unit price is p dollars. If the manufacturer sets the price p to maximize revenue, what is the maximum revenue to the nearest whole dollar?
A. $529,000
B. $66,125
C. $132,250
D. $264,500
Answer: B
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Find the standard divisor for the given situation. Round your answer to two decimals.A small country consists of 7 provinces with the following populations: 
There are 200 federal judges to be apportioned according to the population of each province.
A. 755.6 B. 960.59 C. 880.38 D. 1123.98
Find the value of r and determine if a correlation exists at the indicated level of significance.
?? = 0.05
A. r = -0.8216; Correlation does not exist. B. r = 0.8242; Correlation does not exist. C. r = -0.8242; Correlation does not exist. D. r = -0.8242; Correlation exists.
Find the area.
A. 300 yd2 B. 440 yd2 C. 258 yd2 D. 279 yd2
Solve.A mine produces an ore that is approximately 50% iron. How much ore must be mined to produce 50 pounds of iron?
A. 1000 lb B. 25 lb C. 10 lb D. 100 lb