Answer:
1/4 x 4 = 1 1/20 x 4 = 4/20 or 1/5 which means he can run 5 mile an hour
5 hours
Step-by-step explanation:
This is a classic pre-algebra question.
69
All angles in a triangle = 180°
35 + x + (x+7) = 180
42 + 2x = 180
2x = 138
x = 69
Hope this helps!
