Respuesta :

Answer:

1. The cost of 7 gallons of milk is $15.75

2. 5 cups served and 40 ounces drank

Step-by-step explanation:

Onoriodefelix

Answer:

$15.75

Step-by-step explanation:

Let the cost of 7 gallons of milk be x

Since

3 gallons of milk = $6.75

7 gallons of milk = x

Cross multiply

7 x 6.75 = 3 x X

47.25 = 3x

Divide both sides by 3

47.25/3 = 3x/3

15.75 = x

x = $15.75

7 gallons of milk cost $15.75