V=1024 pi m^3 and v=250 pi m^3
the similarity ratio of the smaller to larger similar cones is
k= V/v=1024 pi m^3/250 pi m^3= 4.096
the great cone is 4.096 times of the small cone (in volume)
Assuming you want them multiplied
f(x)*g(x)=(3x+5)(x^2)=3x³+6x²
Did you ever do this if so do you have an email I can message you on. I've been stuck on this.
