Answer
the fastest growing region is
Boise Idaho
Explanation:
If a deep-ocean trench is located adjacent to a continent, active volcanoes would likely be found landward from the trench.
75 % of the drive is 0.75 x 932.4 miles which is 699.3 miles which if divided by two equals about 350 miles per day will allow her to reach her objective so the result is obtained by just doing simple math according to the total distance and the 75% and dividing the result by 2 days.