1. The total cost, in dollars, of selling a certain commodity is modeled by C(x) = 2x - 300x + 2500. The total revenue, in dollars, is modeled by R(x) = 14x, where x is the number of units sold. a. Find the profit function b. Find the marginal profit function c. Find the marginal average profit function d. Use marginal analysis to estimate the profit from the sale of the 201st doll.