The graph below shows the demand and marginal cost curves for the monopolist Mr. Peanut. 3. Draw the marginal revenue curve. Plot only the endpoints of the graph below. E 210 Tools 180 / marginal revel 150 120 90 COStS and revenues 60 3D 0 1020 30 40 50 60 70 80 90100l10l20130l40 Quantity per period