Answer:
The first choice
Step-by-step explanation:
Multiplyil by 6 to get 4y - 1 =21
For this question, all we need to do is to apply the formular to calculate the distance since we already had the time which is h hours and the speed which is 400 miles per hour:
d = v × t = 400 × h
So the correct answer is number 3.
