17. Kevin finds out that the cost of ground beef is down. He is the owner of a hamburger shop. What will happen to Kevin's supply of hamburgers?
a. it does not change
b. it decreases
c. it increases
d. the qs changes

18. Kevin finds a new way to grill up his hamburgers after buying new machinery that makes grilling faster and cleaner. What will happen to the supply of hamburgers?
a. it does not change
b. it decreases
c. it increases
d. the qs changes

19. Kevin decides to raise the price of hamburgers, what will happen to his supple of hamburgers?
a. it does not change
b. it decreases
c. it increases
d. the qs changes