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Depends on the type of vehicle you are driving and the mileage it gets. Also depends on how fast your drive. Lets say your car gets 20 mpg. If you drive 7 hours at an average speed of 60 mph the you will travel 420 miles.

420 divided by 20 = 21 gallons of fuel. 21 gal x $3.75 per gallon = $78.75

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14y ago

What else can I help you with?