Answer:
R = 7
Step-by-step explanation:
The midpoint was to be exactly in the middle of two points. So the difference between P = -11 and Q = -2 is 9.
-11 + 9 = -2
So the difference between Q and R will be the same so.
-2 + 9 = 7
You have to had since you're going up or higher.
HOPE THIS HELPED!!
