The first, second, and third workers employed by a firm add 24, 18, and 9 units to total product, respectively. Therefore, we can conclude that Multiple Choice marginal product of the third worker is 9. the third worker has to work with poorer-quality tools and raw materials. the firm will not want to hire more than three workers. the first worker puts forth more effort than the second and third workers.

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 $ $