Use the following variant of problem 4-31 to answer the next FIVE questions. The Dodson Meat Processing company in Stuart, VA produces sausage from four ingredients: Chicken, Beef, Pork, and a Cereal Additive. They produce three types of sausages: Regular, Beef, and All-Meat. The company has the following amounts of each ingredient available on a daily basis, along with per-pound costs: Each type of sausage has certain ingredient specifications and selling prices, as follows: Let X_i,j be the number of pounds of ingredient i (C=Chicken, B=Beef, P=Pork, CA=Cereal Additive) used in sausage j (R=Regular, B=Beef, AM=All-Meat). Which of the following variables represents the number of pounds of Pork used in the All-Meat sausage?

X_P,R

X_C,B

X_P,AM

X_CA,R

_{question 2}

If there were 6 ingredients and 7 products, how many decision variables are there in the linear programming formulation of this problem?