Required information [The following information applies to the questions displayed below The following information pertains to Mason Company for 2018 Beginning inventory Units purchased 150 units 400 units $30 $34 Ending inventory consisted of 100 units. Mason sold 450 units at $68 each. All purchases and sales were made with cash. Operating expenses amounted to $2600. Required es a. Compute the gross margin for Mason Company using the following cost flow assumptions: () FIFO, (2) LIFO, and (3) weighted average. (Round "Cost per unit" to 2 decimal places and final answers to nearest whole dollar amount.) Weighted FIFO LIFO Average Gross margin rint b. What is the amount of net income using FIFO, LIFO, and welghted average? (Ignore income tax considerations.) erences Welghted Average FIFO LIFO Net income 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. (Amounts to be deducted should be indicated with a minus sign.) References Weighted FIFO LIFO Average Cash flows from operating activities Cash infiow from customers Cash Outflow for Inventory and expense Net cash flow from operating activities