Mathematics, 20.07.2019 07:30 anggar20

The amount of money it takes to fill up a gas tank varies directly with the number of gallons bought. it cost $21.87 to fill up a car with gasoline with 9 gallons of gasoline. what is the constant of variation? 0.41 2.43 9 21.87

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The amount of money it takes to fill up a gas tank varies directly with the number of gallons bought...