Heidi's Lemonade Stand every Saturday Heidi opens up her lemonade stand on the front lawn. Customers
from all over her town come to enjoy her splendid lemonade, and great customer
service. Today Heidi has a very large pitcher of lemonade and she only has two
measuring cups at 3 oz. and a 5 oz. (these cups don't have any markings to
indicate each oz.) Most customers are happy to buy a serving that is 3 oz, 5 oz, or
some multiple or combination of these. One particularly difficult customer Ozzie,
Insists that today he must have precisely 4 oz of the marvelous liquid. Heidi
wishes to retain her perfect customer service reputation but requires help in
determining how to measure exactly 4 oz. using the cups she has