Consider point M. If point M is the largest integer less than 28, what is the value of point M?

Can i get some on 18,20,& 22? or one of them

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

What is the upper quartile in the box plot?