How do you find a quartile on a stem and leaf plot

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Val and tony get paid per project. val is paid a project fee of $44 plus $12 per hour. tony is paid a project fee of $35 plus $15 per hour. write an expression to represent how much a company will pay to hire both to work the same number of hours on a project.