Suppose you make and sell skin lotion. a quart of regular skin lotion contains 2 cups of oil and 1 cup cocoa butter. a quart of extra rich skin lotion contains 1 cup oil and 2 cups cocoa butter. you will make a profit of $10/qt on regular lotion and a profit of $8/qt on extra rich lotion. you have 24 cup oil and 18 cup cocoa butter. a) how many quarts of each type of lotion should you make to maximize your profit? b) what is the maximum profit?