Question: 8. A rectangular box with a square base is to be made where the material for the sides and the lid costs $2 per square

8. A rectangular box with a square base is to be made where the material for the sides and the lid costs $2 per square foot and the cost for the bottom is $6 per square foot. Find the minimum cost to make a box with a volume of 54 cubic feet. Verify the cost is a minimum

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