(2/5)^3 x (2/5)^-6 = (2/5)^2P-1

Given that abcd is a rhombus, what is the value of x?

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

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)