Which expression is equivalent to -6(3x-3)? O 2x+4
2
-3X-6
O 3 6
-18.X+ 12
- 15x+4

Ineed to know the answer to this algebra question.

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?

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b