3 and 2 are the ansewers i tink
Answer:

n ≈ 3
Step-by-step explanation:
9n-2<7+20

Answer:
23 degrees
Step-by-step explanation:
62+95=157
180-157=23
Yes. Both are at a right angle and both have the little tick on line AB and XY, so they must be congruent.