Answer:
e - surveys
Step-by-step explanation:
I'm not sure btw sorry but hope this can help
The answer is A.
When you multiply by a negative number, you MUST change the sign.
x+100°=180°{being straight angle}
x=180-100
x=80°
again,
45°+x+y=180°{sum of angle of triangle}
45+80+y=180
y=180-125°
y=55°
hope it helps.
Co interior angles' sum is 180°
