I think it is 4.5 miles per hour
Since you don't provide the coordinates of the point W, I will help you in a general form anyway. In the Figure below is represented the segment that matches this problem. We have two endpoints U and V. So, by using the midpoint formula we may solve this problem:

Therefore:

So we know
but we also must know 
Finally, knowing the points U and W we can find the endpoint V.
Answer:
sorry for my handwriting
i think this is the correct answer
Answer: 4
Step-by-step explanation:
Answer:
???? i dont understand
Step-by-step explanation:
i think yes