I dont know what you mean by describe but the inverse is -v
Answer:
(I don't know if this is correct)
To find the length of the rectangle, you need to first do 20 x 2 = 40 because when you finding the perimeter you have to do W + L + W + L = P (or Wx2 + Lx2 = P). You then subtract 40 from 68 (68 - 40) where you get 28 left. you then just divide 28/2 and you get 14. I may be way off but that's how I learned it.
The first graph with the month in numbers because the X value which is the month never appears again while the other appears again or attached to-other y value
1.afgx2
2.bfgx2
I hope it helps Im really not that smart