Suppose a cost-benefit model is given by where y is the cost in thousands of dollars of

Question:

Suppose a cost-benefit model is given by

where y is the cost in thousands of dollars of removing x percent of a given pollutant.
(a) Find the cost of removing each percent of pollutants: 50%; 70%; 80%; 90%; 95%; 98%; 99%.
(b) Is it possible, according to this function, to remove all the pollutants?
(c) Graph the function.

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