A cost–benefit curve for pollution control is given bywhere y is the cost, in thousands of...

A cost–benefit curve for pollution control is given by

where y is the cost, in thousands of dollars, of removing x percent of a specific industrial pollutant. Find y for each of the given values of x .

(a) x = 50

(b) x = 98

(c) What percent of the pollutant can be removed for $22,000?