Question: Michelle's family drove 272.48 miles . Michelle's calculate that they drove 26.2 miles per gallon of gas how many gallons of gas did the car use=> Unit rate = 26.2 miles per gallon,Now the total number of miles that they need to travel is 272.48 miles.Let's divide the total number of miles by the number of miles per gallon.=> 272.48 miles / 26.2 miles per gallon = 10.4 gallonThus, they need a total of 10.4 gallon in 272.48 miles.