Is the relation between monthly paycheck and fwt a function?

Atoy company is considering a cube or sphere-shaped container for packaging a new product. the height of the cube would equal the diameter of the sphere . compare the volume to surface area ratios of the containers. which packaging will be more efficient? for a sphere, sa =4πr²

Franco wants to double the volume of the cone. what should he do?

Ineed me i stuck and i don’t want to get it wrong