Respuesta :

Answer:

C.   y = 54°

Step-by-step explanation:

y + y + 72 = 180

2y = 180 - 72

y = 108/2

y = 54°

C. 54 it has to equal 180 total and y is both so all I did was turn the awnsers into x and did 2x+72 and which ever gave 180 that was the answer which is C.