Represent 2 ÷ (-3) on the number line. <|—|—|—|—|—|—|—|—|—|—|—|—|—>< br /> −7−6−5−4−3−2−1 0 1 2 3 4 5 6 7

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?