4. (40 points) W Bookstore purchases textbooks at wholesale price is $225 per item, and
the selling price is $350 per item. Any unsold books are saivaged at S100. Let a denote
the order quantity and d denote the demand.
【題組】
(a) (15 points) Write down the proft as Determine C1, C2 and C3.
寫作批改
VIP與詳解卡管理
