Answer:
14.065
Explanation:
First you wanna transfer it from kilometers to miles.
if 1 mile is = to 1.6 kilometers that is the same as saying
1/1.6, but because we are using 90 we plug it in and it becomes: 90/1.6 which gives you 56.25.
now we know we are going 56.25 miles per hour and because we are traveling 4 hours divide the miles per hour by 4 and you get 14.065.