sampson Ltd produces two products that can be produced on either of two machines. Each month, only 500 hours of time are available on each machine. The time required to produce each item by hour and machine is: Machine 1Machine 2 Product 133 Product 254 Month 1 DemandMonth 2 DemandMonth 1 PriceMonth 2 Price Product 1100160 $45 $10 Product 2120110 $65 $35 The demand and price point for each product that customers are willing to pay are above. The company goal is to maximize revenue from sales from the next two months. Based on the provided information, how many constraints does this problem have excluding the non-negativity constraints