B is the answer hope this helped u
Answer:
What is the question?
Step-by-step explanation:
I am going to graph the situation on an external graphing utility and show you the answer, it will take a
minute, stay with me.


So the equation of the line is.

A parallelogram
Because...
-opposite angles are congruent
-four sides
-angles must equal 360
100 + 100 +80 + y = 360
280 + y = 360
y = 80
-the angle we don't know is 80 degrees
Answer:
1) I believe 6 (im wrong I know it)
Step-by-step explanation:
you do whatever like 13902-1 , im so smart