Given:
39 cups of floor = 6 pizzas
Let's find the number of cups of floor for 1 pizza:

Therefore, to make 1 pizza, 6.5 cups of floor is needed.
From the table, we have:
4 pizzas = 6.5 x 4 = 26 cups of floor
13 cups of floor =

ANSWER:
Floor(cups) Pizzas
39 6
26 4
13 2