Harsha thinks of a number. She subtracts 2 then multiplies the result by 3. The answer is the same as subtracting 6 from the number then multiplying by 7. What number did Harsha
think of?

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?