for the periodic entries I still got 6) and 7) incorrect.

B January 31 Inventory Cost of Goods Sold Purchases Inventory x 55 1203 75 100 7 January 31 Inventory Cost of Goods Sold 53 5% B January 31 Inventory Cost of Goods Sold Purchases Inventory x 55 1203 75 100 7 January 31 Inventory Cost of Goods Sold 53 5%