58x 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) = 100 v, for 0 sxs 100. (a) Find the cost to remove 90% of the pollutant. (b) Find the cost to remove the final 5% of the pollutant. (a) The cost to remove 90% of the pollutant is 290 million dollars. (b) The cost to remove the final 5% of the pollutant is million dollars. (Type an integer or decimal rounded to two decimal places as needed.)