Evaluate the expression (10 + 4) x 7 - 45 dividend by 9

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

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?

Ineed to find the answer to number 2