Calculate the average total cost of producing 6 trumpets. Show your work. Calculate the marginal cost of producing the 11th trumpet. What is Brody's profit-maximizing quantity? Use marginal analysis to explain your answer. At the profit maximizing quantity you determined in part (c), calculate Brody's profit or loss. Show your work. Brody also produces saxophones at a loss in a perfectly competitive market. Draw correctly labeled graphs for the saxophone market and Brody's firm showing the following at a market price of 5200. i. Brody's profit-maximizing quantity of saxophones ii. Brody's loss, completely shaded