Sigfusson Supplies reported beginning inventory of 135 units, for a total cost of $4,050. The company had the following transactions during the month: Jan. 6 Sold 30 units on account at a selling price of $40 per unit. 9 Bought 20 units on account at a cost of $30 per unit. 11 Sold 20 units on account at a selling price of $45 per unit. 19 Sold 30 units on account at a selling price of $50 per unit. 27 Bought 20 units on account at a cost of $30 per unit. 31 Counted inventory and determined that 75 units were on hand. Required: 1. Prepare the journal entries that would be recorded using a periodic inventory system. (If no entry is required for a transaction/event, select "No Journal Entry Required" in the first account field.) 1 Sold 30 units on account at a selling price of $40 per unit. Record the transaction. 2 Bought 20 units on account at a cost of $30 per unit. Record the transaction. 3 Sold 20 units on account at a selling price of $45 per unit. Record the transaction. 4 Sold 30 units on account at a selling price of $50 per unit. Record the transaction. 5 Bought 20 units on account at a cost of $30 per unit. Record the transaction. 6 Record a journal entry that shows all goods initially on hand at the beginning of the period (in the Inventory account) and all goods bought during the period (in the Purchases account) as having been sold by the end of the period. 7 Record a journal entry that adjusts the accounting records to show that 75 units of inventory actually are still on hand (and should be recorded in the Inventory account) at the end of the period