Sierra runs a factory that makes DVD players each T 50 makes 9 ounces of plastic and 4 ounces of metal HFS 20 requires 3 ounces of plastic and 6 ounces of metal the factory has 276 ounces of plastic 384 ounces of metal available with a maximum of 18 T 50 that can be built each week if HT 50 generates $11 and profit and each F S 20 generates seven dollars how many of each of the DVD players should sierra have the factory make each week to make the most profit