I can only help you with the second one. It is a positive correlation because it is going upwards. Good luck with the first one!
Answer: 36
Step-by-step explanation:
Each side of square are equal length
4 sides
9+9+9+9=36
Use the pythagoream theorem to check. a^2+b^2=c^2
a=15 b=36 c= 39
225+1296=1521
The equation is true so it is a right triangle.
The equation would be -5+(-12), so the answer would be -17 :)
