Answer:
C.178°
Step-by-step explanation:
Complement: 90°
Suplement: 180°
The complement is 42° so you need to subtract it to 90° so 90° - 42° = 48°
And then subtract the supplement 50° to 180° so 180° - 50° = 130°
So you just have to add 130° to 48° so the answer will be 178°
I hope I help Im not really good at explaining
