C
alternate interior angles theorem: If a transversal intersects two parallel lines, then the alternate interior angles are congruent. thus, if the alternate interior angles are congruent, then the lines are parallel.
all the angles are congruent, so m || n and p || q.
Answer:
1. B
2. A
3. C
Step-by-step explanation:
The value of a should be 2000. Hope this helps.
X + 9 = 2x - 3
<u>-x -x </u>
9 = x - 3
<u> +3 +3</u>
12 = x
