I don’t understand this so please write the steps.

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?

If 5x - 2 = -12, then x = a) -50 b) -4.4 c) -2.8 d) -2