Hello, please consider the following.
We know the following, right ?

So, here, it gives.

Do not hesitate if you need further explanation.
Answer:
4 because above the number 0 there is 4 dots :/ I don't have another explanation.
Answer:
11. AW║BY
12. DX║YZ
13. AW║YZ
14. AW║DZ
Step-by-step explanation:
11. If alternate interior angles are congruent, the lines the transversal crosses are parallel.
12. The sum ∠5+∠6 is an alternate interior angle with ∠10. The reasoning of problem 11 applies.
13. If same-side interior angles are suppplementary, the lines the transversal crosses are parallel.
14. Lines perpendicular to the same line are parallel.
4 x 2 = 8
7 x 2 = 14
8 + 14 = 22