10. M.S.U. bookstore buys notebooks for $39 per box of 50. Find the selling price per notebook if the retailer maintains a markup of 20% on the selling price. Round to the nearest cent. 11. Murray's Music sells a guitar for $349.85 while using a markup of 21% on cost. Find the cost. 12. George's Market sells a package of diapers for $7.59. If the diapers cost the store $4.21, find the markup as a percent of the selling price. Round to the nearest tenth of a percent. 13. Le Plume offers a fountain pen for $21.95. If the pens costs $180 per dozen, find (a) the markup per pen, (b) the percent of markup on selling price, and (c) the percent of markup on cost. Round to the nearest tenth of a percent. 14. In a final clearance sale, a digital film scanner originally priced at $609 is marked down to $499. Find the percent of markdown on the original price. Round to the nearest tenth of a percent. 15. Bekins Appliances pays $435 for a dishwasher. The original selling price was $675, but it was marked down 35%. If operating expenses are 18% of cost, find (a) the operating loss and (b) the absolute loss. 16. Cutting Corners had an inventory of $24,352 on June 1, $22,415 on July 1, and $26,847 on August 1. Find the average inventory. Round to the nearest dollar amount. 17. Kelly's Couture made the following purchases of sweaters during the year: 25 at $35 each, 20 at $42 each, 30 at $38 each, and 15 at $45 each. An inventory shows that 24 sweaters remain. Find the inventory value using the weighted-average method. 18. Find the value of the inventory listed in Exercise 17 using (a) the FIFO method and (b) the LIFO method. 10. 11. 12. 13. (a) 14. 15. (a) 16. (b) (c) 17. (b) 18. (a). (b)