Ethan makes punch by mixing orange juice with sparkling water. He uses the same ratio of orange juice
to sparkling water each time he makes punch. The table
shows some of the amounts of orange juice and
sparkling water he uses for different amounts of punch.
Orange Juice (fl oz) 7 21 28 ?
Sparkling Water (fl oz) 4 12 16 28

If Ethan uses 28 fl oz of sparkling water, how much orange juice will he use and what will be the total amount of punch?

Use the number pad to enter your answers in the boxes.

Ethan will use _
fl oz of orange juice, and he will have a total of ___
fl oz of punch.