Suppose that the cost (in millions) to remove x percent of a certain pollutant is given by the cost benefit function f(x) = 72x/(102 - x), for 0<= x <= 100.
- Find the cost to remove 75% of the pollutant
- Find the cost to remove 95% of the pollutant.
- Find the cost to remove the final 5% of the pollutant.