Lauer Corporation uses the periodic inventory system and has provided the following information about one of its laptop computers:. Date Transaction Number of Units Cost per Unit 1/1 100 $ 800 5/5 Purchase 200 $ 900 8/10 Purchase 300 $ 1,000 10/15 Purchase 200 $ 1,100 During the year, Lauer sold 750 laptop computers. (a) What was ending inventory using the FIFO cost flow assumption? (b) What was ending inventory and cost of goods sold using the LIFO cost flow assumption?

Western electric has 32,000 shares of common stock outstanding at a price per share of $79 and a rate of return of 13.00 percent. the firm has 7,300 shares of 7.80 percent preferred stock outstanding at a price of $95.00 per share. the preferred stock has a par value of $100. the outstanding debt has a total face value of $404,000 and currently sells for 111 percent of face. the yield to maturity on the debt is 8.08 percent. what is the firm's weighted average cost of capital if the tax rate is 39 percent?