We know all these angles combined equals 360, so:
3x + 20 + 3x + 20 + x + x = 360
8x + 40 = 360
8x = 320
x = 40
Hope this helps!
Answer:
x=10
Step-by-step explanation:

Answer:
18 to 2
Step-by-step explanation:
Answer:
D.
hope this helps
have a good day :)
Step-by-step explanation: