b) Happy Garden has a contract to produce 10,000 garden hoses for a large discount chain. Happy Garden has four different machines that can produce this kind of hose. Because these machines are from different manufacturers and use differing technologies, their specifications are not the same. Fixed cost to set up Variable cost per Machine production run hose Capacity (RM) (RM) 1 750 1.25 6000 2 500 1.50 7500 3 1000 1.00 4000 4 300 2.00 5000 (i). This problem requires two different kinds of decision variables. Clearly identify each kind. (ii). The company wants to minimise total cost. Write the objective function. (iii). Propose the constraints for the problem. [2 marks] [3 marks] [5 marks]