Answer:
y = 5 + 1.24x
Step-by-step explanation:
Let x be the no. of thousand gallons
Then the cost, y, is:
y = 5 + 1.24 x
You have to pay $5 regardless of how much you order, and $1.24 each thousand gallon ( 1.24x for x thousand gallons)
Just plug in the no. of thosand gallons in place of x, y will be the cost
