Posted by **JEUCD 12/1/11** on Thursday, December 1, 2011 at 5:31pm.

A certain magical substance that is used to make solid magical spheres costs per cubic foot. The power of a magical sphere depends on its surface area, and a magical sphere can be sold for per square foot of surface area. If you are manufacturing such a sphere, what size should you make them to maximize your profit per sphere?

Thank you very much for your help. =)

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