Two departments of a? firm, A and? B, need differing amounts of?steel, wood, and plastic. The table

Two departments of a​ firm, A and​ B, need differing amounts of​steel, wood, and plastic. The table below gives the amount of eachproduct the departments need. These three products are supplied by two​ suppliers, Company Cand Company​ D, with the unit prices given in the table on theright. . . .