Answer:
y = 5
Step-by-step explanation:
If AC is the perpendicular bisector of BD, that would mean that y+3=2y-2.
Now it's just simple algebra.
Solving for y, you get y=5.
m∠A=45 and AB=8, find AC
1. 8:5
2. 17;4
3. 23:6
4. I don't know
See it in the pic.