I would say take 2 from eight which equals 6
equation would be the start at 2.51 and go up 1
2.51 + 1x=91.52
we would start by subtracting 2.51
98.01 = x
so they drove 98.01 miles
if you were looking for time you would need the mph if the car was going around 50 it would be close to 2 hours
12.18 that is the answer to the question