Answer:
No. Hank wont be able to complete the hike.
Step-by-step explanation:
Time Available for hike = 4 hours
The expression which represents the time Hank needs to complete the hike is:

d is the distance in miles of the hiking trail. Since, Hank would like to hike 6 miles, d = 6
e is the elevation gain in thousands. Since, the trail hank will hike on has an elevation gain of 3000, so e = 3
Using these values in the expression, we get:

This means Hank should allow him 4.5 hours or the hike. Since he has only 4 hours available, he wont be able to complete the hike. So the answer to this question is No.