Hi!
Avery drove 30 miles and that represents 25% of his trip To find the total number of miles in Avery's trip, we will use proportions, like this:
30 miles___________25% = 0,25
x miles ____________100% = 1
x = (30*1)/0,25
x = 30/0,25
x = 120
The answer is: The total number of miles in Avery's trip is 120 miles.
Hope this helps!