Omg someone find tbe perimeter of this shape for me. ill give brainliest

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.