What is five hundred plus nine hundred and ninety nine?

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.

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out