Pizza

2 1/4

 

or 3 pizzas

9 friends

each friend eats 1/4 of a pizza

so 1 whole pizza feeds 4 friends.

4+4 = 8

so 2 whole pizzas feed 8 friends

their is one friend still pizza-less :'(

so add 1/4 more!

so we are at 2 1/4 pizzas (needed) , but pizza companies dont sell 1/4 pizzas, so add another one of them hoes to the order!

so in total we need 3 whole pizzas to feed 9 friends!