I think it is B (don't take me for certain cuz I don't know)
Answer: 
Explanation:
Since we have given that
line m and line n are parallel to each other,
So,
Corresponding angles are equal , as shown in the figure ,
According to question,

Hence, 
Answer:
Yes
Step-by-step explanation:
I'm pretty sure that 4 is leaning towards the opposite of b
Oh okay hope you got it right
2x(1+3)=7 is the factored form