Estimate how long otis will have to wait before he gets his tickets

Simplify the expression. enter the correct answer.

Aline parallel to a triangle's side splits ab into lengths of x - 5 and x + 2. the other side, ac, is split into lengths of x and x + 12. what is the length of ac? a) 12 b) 24 c) 36 d)

Can someone me with this problem . show your work .