Be more pacific this isnt pacific at all
Direct variation can be written as a proportion. Therefore, we can write:

Cross multiply to get:
4y=40
Divide by 4 on both sides to get that
y=10.
:)
we know that property of in center we get
DW = FW = EW
compare the equations and solve for x:
DW = FW
7x - 13 = 15x - 37
15x - 7x = 37 - 13
8x = 24
x=24/8
x = 3
now
DW = 7x - 13 = 7×3 - 13 = 8 units
The measure of WE is same as DW=WE = 8 units
Set up a triangle with the ladder being the hypotenuse the wall being one side and the distance away being the other side. Now use pythagorean theorem a^2+b^2=c^2
4^2+15^2=c^2
16+225=c^2
241=c^2
C=15.52 now round
C=15.5 feet
I’m pretty sure they change it and it depends