Simone rents a compact car that gets 31 miles per gallon. When she rents the car, the price of a gallon of gas is $3.10. The cost C of the gas used to drive the car is a function of the number of miles x that the car is driven.
The cost of renting the car is $0.10 per mile driven.
Write an equation for this function.
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Is the problem asking to consider both how many miles driven and how many gallons of gas purchased to find the total cost?
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