Mathematics, 20.02.2021 01:00 hubs14

You pay $3.69 for a gallon of gasoline. This is 90% of the price of a gallon of gasoline one year ago. What was the price of a gallon of gasoline one year ago?

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You pay $3.69 for a gallon of gasoline. This is 90% of the price of a gallon of gasoline one year ag...