After an oil pipeline burst one morning, gas prices went up by $2.20 per gallon. If that one afternoon you bought 10 gallon of gas for $53.90, what was the price per gallon before?

Question

The price before the popen bursted

Answer 1

10 gallons cost $53.90 so 1 gallon costs $5.39 after the price had gone up. The old price was 5.39-2.20=$3.19.