Some people advise that in very cold weather, you should keep the gas tank in your car more than half full. Lou's car had 6.8
gallons in the 15-gallon tank on the coldest day of the year. Lou filled the tank with gas that cost $3.70 per gallon. How much did Lou spend on gas?
Since the price is now 15% less you would first find what 15% of 25 is by using 25*.15 and get 3.25 then you subtract that from 25 and get 25-3.25= $21.75
