Answer:
(3, 1)
Step-by-step explanation:
Let the coordinates of B be (x, y)
Since, M is the midpoint of AB.
Therefore, by mid point formula:

I think you have the right answer she paid $55 dollars for each chair
It would be: 8/32 = 1/4 = 1:4
In short, Your Answer would be Option C
Hope this helps!