Find the length of BC:

Can someone me out here and the tell me the greatest common factor

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

Explain how you can show five less than a number using an algebraic expression