Sorry i wrote question down if f(x)=x+7 and g(x)=1/x-13 , what is the domain of (f*g)(x)? " * " means times or multiplication

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