To answer this question we will firstly deduct the initial payment that rafa el had to pay which was 15.99.
So 136.07 - 15.99 = 120.08. Now this is the amount basically that he drove around. So if we divide 12008 by 76 we will get the number of miles he drove.
So 12008 / 76 = 158 miles. So we have calculated the total number of miles Rafael traveled and paid for.