HW Score: 67.38%, 8.09 of 12 E Homework: 4.2 HW (Applications Question 7, 4.2.10 and Modeling of Quadratic Fun Part 1 of 5 points Points: 0.8 of 1 Save 1 The CarryItAll mini-van, a popular vehicle among soccer moms, obeys the demand equation p = - 50 x + 18,000. The cost of producing x vans is given by the function C(x) = 15000x + 10,000. a) Express the revenue R as a function of x. b) Express the profit P as a function of x. c) Find the value of x that maximizes profit. What is the maximum profit? d) What price should be charged in order to maximize profit? a) R(x) = (Simplify your answer. Do not factor.)