Packaging Costs A rectangular box is to have a square base and a volume of 60 fto. The material for the base costs 404/ft , the material fo the sides costs 10c/fts, and the material for the top costs 204/ft?, Let x denote the length of one side of the base. Find the area of each side of the box, in terms of x. Top of the Box One Side of the Box Bottom of the Box - Find a function in the variable x giving the cost (in dollars) of constructing the box. MY NOTES ASK YOUR ICALMER PRACTICE ANUINER Producers' Surplus A supplier of portable hair dryers will make x hundred units of hair dryers available in the market when the unit price is P = V 36 + 3.6x dollars. Determine the producers' surplus if the market price is set at $12/unit. (Round your answer to two decimal places.) $ 80 X The units in the original equation are in hundreds