20 4 The following information pertains to Mason Company for Year 2: Beginning inventory Units purchased 100 units 310 units @ $70 @ $74 points eBook Print References Ending inventory consisted of 70 units. Mason sold 340 units at $148 each. All purchases and sales were made with cash. Operating expenses amounted to $3000. Required a. Compute the gross margin for Mason Company using the following cost flow assumptions: (1) FIFO, (2) LIFO, and (3) weighted average. b. What is the amount of net income using FIFO, LIFO, and weighted average? (Ignore income tax considerations.) c. Determine the cash flow from operating activities, using each of the three cost flow assumptions listed in Requirement a. Ignore the effect of income taxes. Complete this question by entering your answers in the tabs below. Required A Required B Required C Compute the gross margin for Mason Company using the following cost flow assumptions: (1) FIFO, (2) LIFO, and (3) weighted average. (Round "Cost per unit" to 2 decimal places and final answers to nearest whole dollar amount.) FIFO LIFO Weighted Average Gross margin Required R.