What is the quotient of 3 divided by the sum of 5 and 1

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?