can someone answer question 2 for me? thank you

APPENDIX PROBLEMS 1. Given Q = 9 - P. find (a) the reaction functions of duopolists A and B. (b) the Cournot equilibrium, and (c) the price 2. The demand function for price increases and for price cuts for an oligopolist are, respectively, The oligopolist's total cost function is o? TC = 3.5Q + 60 Q 210 - 30P, or P = 7 (a) Derive the MR.MR, and MC functions facing the oligopolist. (b) Determine the price and output at the kink on the demand curve. (c) Determine the upper and lower limits of the MR gap and prove that 30 Q = 90 - 10P, or P, = 9 - 10 CHAPTER 10 Oligopoly and Firm Arc MC falls in the MR gap. (d) Find the value of the total profits of the oligopolist. 3. Solve Problem 2 again on the assumption that the demand function that the cartel faces increases to Q' = 150 - 10P 4. Determine mathematically the monopoly solution for 5. Given Q = 120 - 10P and TC = 90 + 2 oligopolistic firm, determine mathema output at which the firm maximizes it profits, and calculate P.TR, and : (b) and calculate P.TR, and ; and (c) tota calculate P, TR, and if the firm faces constraint of $155. Problem 3