Solve the problem.Suppose a cost-benefit model is given by y = 
, where y is the cost in thousands of dollars for removing x percent of a given pollutant. What percent of pollutant can be removed for $40,000? Round to the nearest tenth of a percent.
A. 578.4%
B. 107.9%
C. 93.2%
D. 9.3%
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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Simplify the fraction.
A. 
B. 
C. 
D. 
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Find average rate of change for the function over the given interval.y = x2 + 6x between x = 4 and x = 8
A. 18 B. 9 C. 14 D. 28
Mathematics