How to set up a linear equation from a chart

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e

A25- foot ladder leans against a building and reaches a point of 23.5 feet above the ground .find the angle that the ladder makes with the building

George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2