a cake factory can produce cakes at the rate of 500 per day. the factory supplies its cakes to local grocery stores at a rate of 250 per day. the cost to prepare the equipment for producing the cakes is $20. annual holding costs are $2 per cake. assume that the factory operates 250 days a year. 9) refer to the information above. what is the optimal epq? a) 1389 b) 1425.68 c) 1250.27 d) 1000 e) 1581.14