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Graven spent $55.20 on gasoline to fill her 15 gallon tank at another gas station project spent $72.80 of gasoline to fill her 20 gallon tank. who paid less per gallon of gasoline explain your reasoning

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mathstudent55

You must find the unit cost in dollars per gallon for each purchase by dividing the cost by the number of gallons.

Graven: $55.20 for 15 gallons

$55.20/(15 gal) = $3.68/gal

Project: $72.80 for 20 gallons

$72.80/(20 gal) = $3.64/gal

Answer: Project paid less per gallon.