A manufacturing company produces two models of an HDTV per week, x units of model A and y units of model B with a cost (in dollars) given by the following function. C(x.y) = 9x + 18y If it is necessary (because of shipping considerations) that x+y = 60, how many of each type of set should be manufactured per week to minimize cos. What is the minimum cost? To minimize cost, the company should produce units of model A.

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