The base of the pyramid sits atop the rectangular prism. How many faces make up the composite figure?

Find the solutions for a triangle with a =16, c =12, and b = 63º

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.