QUESTION 9 You are the manager of a firm that sells its product in a competitive market at a price of $40. Your firm's cost function is C = 60 + 4Q2. Thus, the marginal costs are MC(Q) = 8Q. The profit-maximizing output for your firm is QUESTION 10 You are the manager of a firm that sells its product in a competitive market at a price of $60. Your firm's cost function is C = 50 + 3Q. Thus, the marginal costs are MC(Q) = 6Q. The profit-maximizing output for your firm is QUESTION 11 You are the manager of a firm that sells its product in a competitive market at a price of $60. Your firm's cost function is C = 50 + 3Q. Thus, the marginal costs are MC(Q) = 6Q. Your firm's maximum profits are QUESTION 12 You are the manager of a firm that sells its product in a competitive market at a price of $14. Your firm's cost function is C = 10 + 4Q +0.50. Thus, the marginal costs are MC(Q) = 4 + Q. The profit-maximizing output for your firm is