Answer:
18.472 miles
Step-by-step explanation:

Cross Multiply

Divide both sides of the equation by 9


Consider the following table.
First we need to turn 1 5/7 into an improper fraction 7x1+5 = 12/7
12 / 7 x 5 / 6 = 60/42 ....reduced.....10/7
10/7 as a mixed number is 1 3/7