Hello can you please assist me with parts a and b?

Matthew Liotine's Dream Store sells Iwater beds and assorted supplies. His best-selling bed has an annual demand of 395 units. Ordering cost is $42: holding cost is $5 per unit per 1,rear. a} To minimize the total cost, how many units should be ordered each time an order is plaoed'? EGG! = D units [round your response to the nearest whole number}- Is} If the holding cost per unit was $5.05 instead of $5, what would the optimal order quantityr be? New EDD = D units {round your response to the nearest whole numbed