Are (3n)^2 and 3n^2 equivalent? Explain why or why not.

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?

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge

Will mark brainliest! ( explain the answer too, it can be one sentence)