7^-12 x 7^5 Simplified

X+y=-4 x-y=2 use elimination with adding and subtraction

Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship

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?