The total expenditures (in millions) of current dollars for pollution abatement and control during the period from 2000 through 2019 can be approximated by the function P(x) = 171.32 ex, where x = 0 corresponds to the year 2000. (a) In what year would the total expenditures reach $213 million dollars? (b) If this model remains accurate, when would the total expenditures reach $359 million? (a) The expenditures would reach $213 million in the year mid-. (Simplify your answer. Type a whole number.) (b) The expenditures would reach $359 million in the year mid- (Simplify your answer. Type a whole number.)