Solve the problem.Suppose the government wants to impose a tax on fossil fuels to reduce carbon emissions. The cost benefit is modeled by 
where x represents the dollars of tax per ton of carbon emitted and P represents the percent reduction in emissions of carbon. (P is in decimal form.) Determine P when 
Round to three decimal places.
A. 1.776
B. -0.19
C. -0.218
D. 0.224
Answer: D
Mathematics
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Solve the problem.Find the mass of the region of density 
bounded by the hemisphere 
and the xy-plane.
A. 16? B. 32? C. 8? D. 4?
Mathematics
Find the limit.
A. 
B. - 
C. ?
D. -?
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Evaluate the expression.(-7)2
A. -14 B. -49 C. 14 D. 49
Mathematics
Determine the metric unit that would best be used to measure the volume.The volume of cough medicine in a single dose
A. kiloliters B. cubic centimeters C. cubic meters D. liters
Mathematics