Exercise 5-19 Effect of inventory cost flow (FIFO, LIFO, and weighted average) on gross margin LO 5-6 The following information applies to the questions displayed below The following information pertains to Mason Company for 2018: Beginning inventory Units purchased 90 units$40 310 units$45 Ending inventory consisted of 30 units. Mason sold 370 units at $90 each. All purchases and sales were made with cash Oting expenses amounted to $4100. Exercise 5-19 Part c 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.) ed FIFO LIF Average Cash flows from operating activities Cash inflow from customers Cash Outflow for Inventory and expense Net cash flow from operating activities