Find the value of x. For full credit you must show proportion, show the product of the cross multiplication, solve for x.

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

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?

Maren is buying carpet for her rectangular living room. the room is 4.8 yards wide and 5.2 yards long. how much carpet does she need to buy? enter your answer as a decimal in the box. yd2