Cost of Cleaning a Pollutant Suppose that the cost (in millions of dollars) to remove x pe...

Cost of Cleaning a Pollutant Suppose that the cost (in millions of dollars) to remove x percent of a certain pollutant is given by the cost–benefit function

f(x) =  for 0 ≤ x ≤ 100.

(a) Find the cost to remove 85% of the pollutant.

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(b) Find the cost to remove the final 5% of the pollutant.