Kevin orders most of his stock from one supplier that sends a truck every week. But there are 2 items that he orders separately, each from its own supplier. Below are the parameters for the items. Special item A Special item B Demand 6800 1900 per year Holding rate $50 Order cost $35 Safety stock 200 Lead time 12 $120 per unit per year $42 per order 150 units 7 work days Given the parameters, determine the following values. Special item A Special item B EOQ ROP TC Note: there are 300 work days per year