Machine X has an initial cost of $12,000 and annual maintenance of $700 per year. It has a useful life of four years and no salvage value at the end of that time. Machine Y costs $22,000 initially and has no maintenance costs during the first year. Maintenance is $200 at the end of the second year and increases by $200 per year thereafter. Machine Y has a useful life of eight years and an anticipated salvage value of $5,000 at the end of its useful life. If the MARR is 6%, what is the approximate Net Present Worth (NPW) of machine X

Inventory by three methods; cost of goods sold the units of an item available for sale during the year were as follows: jan. 1 inventory 20 units at $1,800 may 15 purchase 31 units at $1,950 aug. 7 purchase 13 units at $2,040 nov. 20 purchase 16 units at $2,100 there are 18 units of the item in the physical inventory at december 31. determine the cost of ending inventory and the cost of goods sold by three methods, presenting your answers in the following form: round your final answers to the nearest dollar. cost inventory method ending inventory cost of goods sold a. first-in, first-out method $ $ b. last-in, first-out method $ $ c. weighted average cost method $ $