3. FinFone Paper Mill is a small-scale paper making company which has four making machines to produce four different types of papers. Each type of paper must go through processing on each of four machines. The manufacturing time (in minutes) per unit of paper produced is in the following table 16 2.5 0.9 2.5 2.6 6.5 The maximum time allotted for each machine is 30 hours per week and at least 100 units of each type of paper should be made using these machines during the week Profit per unit is: 032 0.44 0.5 1. Develop a linear programming model for this problem (Excel) 2. What are the decision variables for this problem? Paper types ABC& D 3. What is the optimal solution in terms of the objective function and decision A 100 B- 100 C- 203 D- 100 Pe 195.38 4. Is there only one optimal solution for this problem? Yes/No and briefly explain. Hint: Solver is not required to answer this question. Yes, because the constraint line is not parallel to any of the objective function