Jim wants to put carpet in four identical rooms. each room is 14 ft by 20.5 ft. a roll of carpet will cover 200 ft² . how many rolls will he need?
showing your work would be greatly appreciated.

Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?