Madeline Thimmes's Dream Store sells water beds and assorted supplies. Her best-selling bed has an annual demand of 395 units. Ordering cost is $35; holding cost is $5 per unit per year. ?a) To minimize the total cost, how many units should be ordered each time an order is placed EOQ = nothing units (round your response to the nearest whole number). b) If the holding cost per unit was $6.00 instead of $5, what would the optimal order quantity be? New EOQ = nothing units (round your response to the nearest whole number).