Respuesta :

elleemaeschwab

Answer:

Part A: a=10

Part B: 120°

Part C: 60°

Step-by-step explanation:

Part A: set 7a+50=15a-20 and solve because they are corresponding angles.

Part B: FNT is equal to the angle MNG so plug in a=10 and you get 120 so FNT=120

Part C: NTK and KTU are adjacent angles that equal 180. if you plug in a=10 into NTK you get 120. 180-120= 60.