Bot what would 9 gallons of gas cost at $2.12 per gallon?
To calculate the cost of 9 gallons of gas at $2.12 per gallon, you simply multiply the price per gallon by the number of gallons:
Cost = Price per gallon x Number of gallons
Cost = $2.12/gallon x 9 gallons
Cost = $19.08
Therefore, 9 gallons of gas at $2.12 per gallon would cost $19.08.