Karen perez runs an office supply store that also performs simple office services, such as copying. it is time to purchase a new high-speed copier and karen has learned that machine uptime is a critical factor in selection. she has gathered the following information on reliability and maintainability for the three copiers she is considering. given that all other factors are equal, which machine should she purchase? copier mean time between failures (hours) mean time to repair (hours)able copy 40 1business mate 80 4copy whiz 240 8

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 $ $