Answer:

Step-by-step explanation:
The formula of a midpoint:

We have the points J(13, 8) and K(-6, -6).
Substitute:

X = 4
Y = 5
As for the other two problems... I'm sorry but they slipped my mind. Apoligies!
Answer:
This has nothing to do with math...or does it?
Answer: 12 explanation: basically you can either divide 8 by 2 and you get 4 then multiply 3 by 4 or you can multiply 8 by 3 then divide it by 2 and you get the same answer