David buys fruits and vegetables wholesale and retails them at Davids Produce. One of the more difficult decisions is the amount of bananas to buy. Suppose that David purchases bananas once week at 10 cents per pound and retails them at 30 cents per pound during the week. Bananas that are more than a week old are too ripe and are sold for 5 cents per pound. Suppose that the demand for the good bananas has continuous distribution that is uniformly distributed between 5 and 10. What is the expected profit of David in a week if he buys 8 pounds of banana?