Can I get some help pls A triangular prism is 18 millimeters long. It has a triangular face with a base of 17.8 millimeters. The volume of the prism is 1,441.8 cubic millimeters. What is the height of its triangular face?

Ineed to know the answer to this algebra question.

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?

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?