The vertical mark between A and M and the vertical mark between M and B show that segments Am and MB are congruent. That makes point M the bisector of segment AB.
The two segments AM and MB are congruent, so their lengths are equal.
12 because first you need to divided 45 by 5 to get 9 which is the cost of each ticket with the price off of each next you need to add 3 to nine because each ticket was 3 dollar off so the answer would be 12
