Mike got on an elevator and went down 3 floors. he meant to go to a lower level, so he stayed on the elevator and went down 3 more floors. how many floors did mike go down altogether.?

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

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?