Respuesta :

Sara drove 18 miles per gallon of gas.

72 miles ÷ 4 gallons of gas = 18 miles per gallon of gas

lightcaps298

I think the answer is 18 because 72 divided by 4 is 18. I don't know if it is mph or if its miles per gallon. I don't know, it's one of those two so yah...

Hope this helps. c;