What number is 15%of 40? write a proportion and solve

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

Write the equations in logarithmic form 10^3=1,000

Asinusoidal function whose frequency is 1/6pi