Answer:
C.Infinitely many solutions
I solved by substitution

Infinitely many solutions
Step-by-step explanation:
x+13⁰+10x+13⁰+2x-2⁰= 180⁰
13x= 180-24
13x=156
x = 12⁰
now angle Q = 10x+13⁰
= 10(12)+13= 120+13
= 133⁰
I think B not 100%shure ,you could prob go ask this on yahoo and get a bit more help ;) sorry I couldent help more
If x- 7 = 14 then X = 21. so 21-2= 19. :)