Mike and Cecilia each have a recipe for making paper-mache paste. Pleaseee help

Arational number that is equivalent to -20/4?

A50-foot ladder is leaning against a vertical wall. if the base of the ladder is 45 feet from the base of the wall, find the angle the bottling of the ladder makes with the ground.

On ryan's last social studies test there were two types of questions true/false worth 3 points each and multiple choice questions worth 4 points each