Evaluate. Write your answer as a fractionin simplest form.

216−(−83)+(−479)=

Which number produces a rationale number when multiplied by 1/5

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?

Simplify the expression below -3(10x+4y)+6(6x-2y)