Write <, >, or = between the pair of numbers to form a true statement.
138.0715
138.0157
138.0715
138.0157

Which math sentence can be used to determine if the triangle is a right triangle?

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.

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?