y=- 6.3x 100-x where x is a number of percent and y is the cost, in thousands of dollars, of removing x percent of a given pollutant. Complete parts a through c. a. Find the cost of removing each percent of pollutants: 50%; 70 % ; 80 % ; 90 %; 95%; 98%; 99%. 50% 80% y = 95% 70% 90% 98% 99% (Type an integer or decimal rounded to two decimal places as needed.) b. Is it possible, according to this function, to remove all the pollutant? O No Yes c. Graph the function. Choose the correct graph below. O A. B. C. O D. Q 100-