Answer:
option c is the correct answer
Step-by-step explanation:
∠YXZ+117°=180°
∠YXZ=180°-117°
∠YXZ=63°
63°+36°+∠YZX=180°(sum of angles is 180)
99°+∠YZX=180
∠YZX=180-99
∠YZX=81
c=42
s=30
sorry but I don't know the answer
no thanks but I'll see if I can get friends to join