. Suppose a small cheese pizza costs $10 and a calzone costs $5. You have $40 to spend. The marginal utility (MU) that you derive from each is as follows: (L019-3) Number MU of PIzza MU of Calzone 0 1] 60 30 2] 40 28 3] 30 24 3 20 20 4] 10 10 5 a. How many of each would you buy? b. Suppose the price of a calzone rises to $10. How many of each would you buy? 0. Use this to show how the principle of rational choice leads to the law of demand