Which pair of functions is not a pair of inverse functions?

What is this inequality notation? t is less then or equal to 2

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

In the diagram, points d and e are marked by drawing arcs of equal size centered at b such that the arcs intersect ba and bc. then, intersecting arcs of equal size are drawn centered at points d and e. point p is located at the intersection of these arcs. based on this construction, m , and m