1/6 (12 -6x) = 5 (x+4) plz help.

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?

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)