Hi there- could you please help me understand the steps in solving this? Thank you so much for your help today.

For questions 1, 2, and 3, consider the retail market for regular gasoline. Assume, for purposes of these first three questions, that this market is currently a perfectly competitive market with the following conditions: 1) Downward sloping demand; 2) Upward sloping supply; and 3) U-shaped Average Total Costs and Marginal Costs for individual firms. Graphically (using side-by-side graphs) depict the perfectly competitive market price and quantity as well as individual firm's profit maximizing quantity under the assumption that we are initially in Long Run Equilibrium. (Both a graph and a narrative are needed for this question - upload both in one file here.)