What is the measure of angle x?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

Can you me with this question? i'll reward *30 points i just need with this one question so that i could solve the others. * edit: i originally set up the question to reward 30 points, but for some reason i can only reward 15. if you don't get 30, then i'm sorry. i'm still kind of new to this site