I believe it’s B i’m so sorry if i’m wrong!!!
Answer: x=20
Step-by-step explanation:
The entire thing is equal to 180 degrees. so, 100+3x+x=180, which can be simplified to 100+4x=180. If we subtract 100 from both sides, we get 4x=80, 80 divided by 4 is 20, so x=20
Answer:
Step-by-step explanation: true
Answer:
B and C are true
Step-by-step explanation:
hope this helps :)