A brass manufacturer makes three different type of wholesale brass blocks from copper and zinc according to the following matrix.    Brass Blends       High brass       Muntz metal       Gilding metal    Copper       65%   60%   95%   Zinc 35%   40%   5%   In addition, the demand (in thousands of pounds) from Plant 1 is 11 High Brass, 4 Muntz metal, and 26 Gilding metal, and the demand from Plant 2 is is 13 High Brass, 4 Muntz metal, and 27 Gilding metal. a) Make a 2×3 matrix B that contains the blending information in decimal form.                     b) Make a 3×2 matrix D for the demands at each plant.                     c) Find the matrix product to find each locations need for each type of metal.             d) if the price of zinc is $0.94 per pound and the price of copper is $3.78 per pound. The total cost of Plant 1 is The total cost of Plant 2 is

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