1. ## function calculus expression

I need help solving these problem. All help will be greatly appreciated.

1. Write a function statement indicating the Volume (V) of a sphere depends upon its radius (x)

2. Write a function statement indicating the Surface Area (S) of a sphere depends upon its radius (x)

I need help solving these problem. All help will be greatly appreciated.

1. Write a function statement indicating the Volume (V) of a sphere depends upon its radius (x)

2. Write a function statement indicating the Surface Area (S) of a sphere depends upon its radius (x)
You mean like this

$V(x)=\frac{4}{3}\pi{x^3}$?

I don't if this is really for a calculus class.. but do you know that the volume of a Sphere is given by $V = \frac{4}{3} \, \pi r^3$ and therefore you can repalace $r$ with $x$?
The surface area is given by $S = \frac{dV}{dx} = 4 \pi x^2$ Ü