Answer:
A. Definition of linear pair
Step-by-step explanation:
A linear pair of angles is formed when two lines intersect. Since angle on a straight line = 180°, angles of a linear pair sum up to 180°.
angles 1 and 4, angles 2 and 5, angles 3 and 6 are all linear pairs. Each pair = 180°.
We can see that
lies just before 0,
lies between 2 and 3m and
lies between 4 and 5. So, we have

In particular, this implies that

So, the correct order would be

Answer:
B.
Step-by-step explanation:
3x + 4 = 3x - 2
3x = 3x - 6
0 = -6, false
Answer: no solution