Answer three questions including question one. Label your answers properly. All operations leading to numerical answers must be stated. Materials should be properly presented. Sloppy presentation will be penalized. (1). A profit maximizing firm has the following Total Revenue (TR) and Short Run Total Cost (STC) functions. 3 2 TR (Q) = 25Q-Q STC(Q) = Q - 9Q + 30Q + 20 (a). What is the fixed cost for this firm? How did you know? (b) Find the firm's profit maximizing output and the market clearing price. (c) Determine the associated level of profits. (d) Evaluate the second order condition for profits to be maximized