67POINTS WILL MARK BRAINILEST If f(x) = 5x3 and g(x) = x+1 find (f•g)(x).

A 5x^4+ 5x^3
B5x^3+1
C 6x^3
D 5x^4+1

I hope this helps you good luck

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .