Respuesta :

Answer:

he needs 17/8 gallons of milk to make 30 milkshakes and this is proportional relationship

Step-by-step explanation:

3/4 divided by 12 = 1/16

gallon to make 1 milkshake and

1/16 x 30 = 17/8 gals. to make 30 milkshakes,

it's proportional because 3:4 > 15:8