We know that 20 percent is 1/5

total price is $8,000
2 + 1 = 3
3 - 3 = 0
Hope this helped :)
1/the rate of leakage per hour
This will give you the time it takes for 1 gallon to leak out in hours.
For example, if something is leaking at the rate of 12 gallons per hour, it will take 1/12 of an hour for 1 gallon to leak out. ( or 5 min)