Answer:
Step-by-step explanation:
if i had to guess i would say a
ANSWER
The midpoint is a) (m,n)
EXPLANATION
The point O has coordinate (0,0) and the point A has coordinate (2m,2n)
The x-coordinate of the midpoint is
Also,
The answer is A
THE ANSWER IS 20 BECAUSE THAT IS THE ANSWER.
i honestly dont know its tooooo hard