Bathroom Wall Fix
it depends on how the wallpaper was put on
Buy some wallpaper remover spray ($3-$5) and dounce the paper.
Wait 15 mins, and start at a corner and pull away.
If it's already peeling it should come off easy.
But if you do have to scrape, and need to repair drywall,
just use spackling, let it dry, and sand to a smooth finish.
Prime the wall with 2 coats primer
I suggest Benjamin Moore paint products. Their "Regal" brand is best.
They have a particular "Kitchen & Bath" brand also. Haven't used.
Even Benjamin Moore's second line is good, "Super Spec"
I like a eggshell finish, cus it doesn't reflect light as much as semi, and it's cleanable
Matt | tile contractor