Some people advise that in very cold weather, you should keep the gas tank more than half full. Irene’s car had 6.9 gallons in the 15-gallon tank on the coldest day of the year. Irene filled the tank with gas that cost $3.50 per gallon. How much did Irene spend on gas?


  1. So for this equation you are looking for how much did 6.9 gallons of gas was. This can be solved by some simple multiplication. 6.9 (gas) x 3.50 (cost) = 24.15$


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