This is for math and i don't really understand it.

Here, ratio of object's height to it's shadow = 2.5/5 = 1/2
Now, let height of street light = h
It's height ratio to shadow would be = h/26 = 1/2
h = 26/2 = 13 feet

In short, Your Answer would be 13 feet

Hope this helps!

The east side of the west are the roll call managers

Okay i will add you