The cost of controlling emissions at a firm goes up rapidly as the amount of emissions reduced goes up. Here is a possible model:
?

?
where q is the reduction in emissions (in pounds of pollutant per day) and C is the daily cost (in dollars) of this reduction. If a firm is currently reducing its emissions by 12 pounds each day, what is the marginal cost of reducing emissions even further?
?

A. $3,600
B. $4,800
C. $9,300
D. $1,200
E. $2,400


Answer: B

Mathematics

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