Faça o balanceamento das equaçoes: a) c15 h30 + 02 > c02 + h20 b) c15 h30 + 02 > c02 + h20

How many solutions does the nonlinear system of equations graphed below have?

Complete the conditional statement. if a + 2 < b + 3, then a < b b < a a – b < 1 a < b + 1

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?