Suppose Merrimack sells 1,800 hardcover books per day at an average price of $40. Assume that Merrimack's cost for the books in 65% of the selling price it charges retail customers. Merrimack has no beginning inventory, but it wants to have a three-day supply of ending inventory. Assume that selling and administrative expenses are $5,400 per day. Determine Merrimack's budgeted purchases for thee next (seven-day) week. Please show work.