L 12. The figure on the next pa; shows a linear demand curve. Fill in the blanks a through I as indicated in the figure? 13. For the linear demand c e in problem 12 (on the next page): a. Write the equation foge demand curve. b. Write the equation forge inverse demand curve. Write the equation for 3, e total revenue curve. Write the equation fore marginal revenue curve. Check your answers or problem 12 using the equations for demand, inverse de- mand, and marginal revenue, and total revenue. 9.9\"?) 14. Write the equation for the demand curve in the graph for problem 7. What is the equa- tion for marginal revenue? At what price is demand unitary elastic? At what output is marginal revenue equal to 0