Hello, I need assistance with the following problem

Price 220 210 MC 200 190 180 170 160 150 140 130 ATC 120 1 10 100 90 -39868 838 MR 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Quantity 1. (5 points) Use the accompanying graph to answer the questions that follow (a) Suppose this monopolist is unregulated. (1) What price will the firm charge to maximize its profits? (2) What is the level of consumer surplus at this price? (b) Suppose the firm's price is regulated at $80. (i) What is the profit maximizing (loss minimizing) level of output in the short run? (ii) In the long run, how much output will this firm produce if the price remains regulated at $80? Please explain