Lines And Angles ! Please show work

Answer: a=25, 139 degrees, 41 degrees
Step-by-step explanation:
to find a:
180=2a-9+5a+14
180=7a+5
7a=175
a=25
m<ABQ:
5a+14
5(25)+14
125+14
139 degrees
m<BCR:
180-139
41 degrees
I think these are correct but im not completely sure :)