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Question Suppose a monopolist firm faces a demand of Q=300-2P and its total cost is TC=75Q+Q2. a. What is the firm's marginal revenue? b. Find the firm's revenue-maximizing quantity. c. Find the firm's revenue-maximizing price. d. What is the firm's profit at the revenue-maximizing price? e. What is the firm's marginal cost? f. Find the firm's profit-maximizing quantity. g. Find the firm's profit-maximizing price. h. Calculate the firm's markup (Lerner Index) at the profit-maximizing price and show that the Lerner rule applies