9. Suppose the market demand curve for tacos can be expressed as Q) = 120 - 3P, where QD is the quantity of tacos demanded and P is the price of a taco a. What is the maximum price that will be paid for a taco? b. What is the maximum quantity of tacos that will be sold? c. If the price for one taco was set at $5, how many tacos would be sold? 10. Suppose the market for potatoes can be expressed as follows: Supply: Qs = -2(} + 10p Demand: Q) = 400 - 20p Solve for the equilibrium price and quantity