Question: Packaging Costs A rectangular box is to have a square base and a volume of 70 ft 3 . The material for the base costs

Packaging CostsA rectangular box is to have a square base and a volume of 70 ft³. The material for the base costs 40/ft², the material for the sides costs 10/ft², and the material for the top costs 35/ft². Letting x denote the length of one side of the base, find a function in the variable x giving the cost (in dollars) of constructing the box.

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