did not have enough knives. She decides she needs to order some more silverware, but wants to take advantage of any quantity discounts her vendor will offer. > For a small order ( 2,000 pieces or less) her vendor quotes a price of $1.80/ piece. > If she orders 2,001 to 5,000 pieces, the price drops to $1.60/ piece. >5,001 to 10,000 pieces brings the price to $1.40/ piece, and >10,001 and above reduces the price to $1.25/ piece. acceptable range): a) What is the optimum ordering quantity? units (round your response to the nearest whole number). b) What is the annual holding cost? \$ (round your response to two decimal places). c) What is the annual ordering cost? \$ (round your response to two decimal places). d) What are the annual costs of the silverware itself with an optimal order quantity? \$ (round your response to the nearest whole number). e) What is the total annual cost, including ordering, holding, and purchasing the silverware? $ (round your response to two decimal places)