The demand function for a product heavy in fossil fuels

Problem 4. (30 points) (Monopoly .) The demand function for a product heavy in fossil fuels is (1) Q=40 - P. The market is served by a monopolist that is capable of bringing the product to the market at a constant marginal cost of production, namely $10 per unit. A. Obtain the inverse demand function. In other words, re-arrange equation (1) so that price is in the left-hand side of the equation, and quantity and everything else in the right-hand side. Draw the inverse demand function in a graph where the x-axis is quantity and the y-axis is price. B. Write the revenue function for the monopolist. Obtain the marginal revenue function and draw it in your graph. C. Find the equilibrium quantity and price in this monopolistic market. D. Compute the deadweight loss