JJ is selling an exclusive hand-made necklace on eBay. It is estimated that the demand next month is a function of price as follows: d(p) = 100 - 2p
a. What price maximizes JJ's revenue, and what is this maximum revenue?
b. Suppose JJ has only 20 necklaces available to sell next month. What price maximizes revenue, and what is this maximum revenue next month?