26. 27. 28. 26. An invoice amounting to $2600 is dated March 1 and offers terms of 2/10,n/30. If the invoice is paid on March 9, what amount is due? 27. Find the percent of markup based on selling price if an item costing $245 is sold for $280. 28. Find the single discount equivalent to a series discount of 30/10 29. Using the straight-line method of depreciation, find the annual depreciation on an asset that has a cost of $8750, an estimated life of five years, and a scrap value of $425. 30. A retailer sells an appliance for $413.80 after deducting 20% from the original price. Find the original price. 29. 30