III. Calculations (10 points) Beginning inventory, purchases, and sales data for USB flash disks are as follows: 1. Nov1 Nov 6 Nov 14 Nov 19 Nov 25 Nov 30 Inventory 140 units at $25 Credit Sales 60 units at $30 (Selling price) Purchase 100 units at $22 Credit Sales 80 units at $30 (Selling price) Credit Sales 60 units at S30 (Selling price) Purchase 70 units at $20 a. Record the journal entries of the transactions on Nov 6th (Assuming the purchase is on credit, 4 points) b. How much is the merchandise sold using periodic FIFO method? (Show the calculations, 4 points) c. How much is the gross profit in November? (2 points)