a) Same-side interior angles
b)

c) They are parallel by the same-side interior angles theorem.
Answer:
-10
Step-by-step explanation:
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️



Add sides 2

Simplification

Divide sides by 9




♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Answer:
D, It's used for every one
Step-by-step explanation:
Answer:
X=8
Step-by-step explanation: