4 a/The average-cost method in a periodic inventory system is called. b/Which inventory system that company keeps detailed inventory records of the each inventory purchase and sale? c/ The freight costs incurred by the buyer are operating expenses. True or false? d/That company that buys products and resell them with a large quantities is a/The primary source of revenue for a merchandising company results from performing services for customers. True or false? b/Trade company does not carry out a production process for goods solds. True or false? c/If beginning inventory is 60.000, cost of goods sold is 380.000, and ending inventory is 50.000, cost of goods purchased is d/A situation in which a company sells its products directly to customers in another country without using another person or organization to make arrangement for them is called e/ What will result if gross profit are greater than operating expenses? 5