Each scenario below provides the price and output level at which a single-price monopolist is currently operating. In each case, determine the firm’s profit per unit, the firm’s total profit, and whether the firm should increase or decrease its output in order to maximize profits, assuming the firm does not shut down. (Drawing diagrams may help you to answer these questions. Prices and costs are in dollars.)

a. p = 15, Q = 600, MR = 7, AT C = 5, MC = 7

b. p = 18, Q = 300, MR = 13, AT C = 5.50, MC = 3.50

c. p = 11, Q = 680, MR = 2, AT C = 6, MC = 9

d. p = 15, Q = 600, MR = 7, AT C = 17, MC = 7

e. p = 13, Q = 700, MR = 1.75, AT C = 12.50, MC =