Answer:
20 gallons
Explanation:
let's set up an expression to match this question.
if gas costs 3.35 a gallon, and we want to find the number of gallons:
3.35x = 67.00 where x = the number of gallons he bought.
then, solving for x:
x = 67.00/3.35 = 20 gallons
hope this helped!