Answer:
Line BC
Step-by-step explanation:
Opposite means whatever is exactly parallel to angle a.
In this case, we notice BC to satisfy that rule.
Hope this helps.
Good Luck
Answer:

I don't really remember this very well, because it confusing me
Answer:
im pretty sure this is the answer :) ym = (y1 + y2)/2
Step-by-step explanation:
After consideration I'm not sure but I think x=3 and y=6 I'm not a math whiz but this made sense to me.