What is the absolute value of the integer –12

Plz me plz i need and plz delte this after answer

The room above is shaped like a rectangle anthe room above is shaped like a rectangle and has a perimeter of 34 feet. if the room is 11 feet long, how wide is it?

Abookstore owner is having a sale the book bart wants was originally priced at $14.99 the book is now $10.04 by what percentage was the price reduced