Increased by 130% is 69 ?

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

6cm10 cma conical paper cup has dimensions as shown in the diagram. how much water can the cup hold when full?

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?