Luigi uses 39 cups of flour for every 6 pizzas he makes. Complete the table using equivalent ratios. Flour (cups): 39 Pizzas: 6 Flour: __ Pizzas: 4 Flour: 13. Pizzas: __Please help! Fill out the blank!

39 cups.........6 pizzas
x cups............4 pizzas
39/x=6/4
x=39*4/6=156/6=26 cups
⇒ Flour:26 ..........4 pizzas

39 c......6 p
13c.......y p
39/13=6/y
y=13*6/39=78/36=2 pizzas
Flour:13.........2 pizzas