Question ? {10 points] A Manufacturing company must decide on the processes to produce 1650 units on 4 machines. More information about costs and production capacities are given in the table below. Machine Fixed Cost Variable Cost Minimum Maximum Productlon Productlon 1?00 1100 so 900 4 100 5.50 any any a. Formulate the algebraic model by writing decision variables. objective function and constraints. b. Add a constraint to ensure that machine 4 is used only if machine 3 is used. Answer Part a {10 marks} in the box below