PLZS ANSWER I NEED HELP

Answer:
107
Step-by-step explanation:
the line is an 180 degree angle so it would be 180-73 which equals to 107! :)
have a good day!!
Answer:
107
Step-by-step explanation:
I think bc
the entire thing is 180 degrees and then just do 180 - 73
sry if its wrong