For this equation, let b equal the cost per box.
b=$100/5
Answer:
280 miles
Step-by-step explanation:
So, 420 miles=12 gallons
That means that for 1 gallon you would be able to go 35 miles.
Just multiply that by 8. 35*8=280
The number would stay the same because, for example, 6 - 0 can't be 0 so it would be 6.