Find the slope of the line containing the pair of points (-19,-3) and (-20,-17)

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?

Is fgh ~ jkl? if so, identify the similarity postulate or theorem that applies.

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?