Answer:
The answer is option D.
5/3
Hope this helps you
b.
42+x+90+8=180° linear pair
x=180-140=40°
<em>x=40°</em>
c.
10+x+90+3x=180 linear pair
4x=180-100
x=80/4=20
<em><u>x=20</u></em>°
Ummm wasn't me but thank you for the points hope you have a great holiday and new year!
Step-by-step explanation:
See below
