1. In a competitive market, there are 8 firms, each with total cost given by: TC = Q^2+100
a. Derive the firm's long-run supply equation and the market supply equation.
b. Market demand is given by Q = 120 - P. Determine the equilibrium price and total output in the market. What is each firm's output and economic profit?
c. In the long-run, is the number of firms likely to increase or to decrease?