6--The Alyssa Co. reported sales of 450 units at $35 each; purchases of 400 units at $20 each and a beginning inventory of 100 units at \$16 each for the year ended 31 December 2023. The Alyssa Co.'s income statement for the year ended 31 December 2023 reported cost of goods sold of $8800. Which costing method does The Alyssa Co. use? 7--In an inflationary economy, which inventory costing method minimizes income tax expense? Why