Please solve this question

0D 1 1.10 Because of the huge xed cost of running pipes to everyone's home, natural gas is a natural monopoly. Suppose demand is Q = 100 P and marginal revenue is MR = 100 2Q. Suppose marginal cosr is $20, and the xed cost of setting up the natural gas pipelines is $1,000. a. Compute the industry outcome (quantity, price, prot, consumer surplus, and social wel- fare) under unregulated monopoly. b. What regulatory price maximizes social wel- fare? Compute the industry outcome (quantity, prot, consumer surplus, and social welfare) under this price. Would this policy be sustain- able in the long run? c. Compute the industry outcome with the laxer regulatory policy of constraining price to be no greater than average cost. Would this policy be sustainable in the long run? Answer Q2) 12.3 Return to the example used in the text for the Cournot model, where demand was equal to Q=120P Suppose that instead of costless production, marginal and average costs are constant at MC=AC=30 Compute the Nash equilibrium quantities, prices, and prots