Halogen Laminated Products Company began business on January 1, 2018. During January, the following transactions occurred:

Jan. 1 Issued common stock in exchange for $100,000 cash.

2 Purchased inventory on account for $35,000 (the perpetual inventory system is used).

4 Paid an insurance company $2,400 for a one-year insurance policy.

10 Sold merchandise on account for $12,000. The cost of the merchandise was $7,000.

15 Borrowed $30,000 from a local bank and signed a note. Principal and interest at 10% is to be repaid in six months.

20 Paid employees $6,000 salaries and wages for the first half of the month.

22 Sold merchandise for $10,000 cash. The cost of the merchandise was $6,000.

24 Paid $15,000 to suppliers for the merchandise purchased on January 2.

26 Collected $6,000 on account from customers.

28 Paid $1,000 to the local utility company for January gas and electricity.

30 Paid $4,000 rent for the building. $2,000 was for January rent, and $2,000 for February rent.

Required:

1. Prepare general journal entries to record each transaction. Omit explanations.

2. Post the entries to T-accounts.

3. Prepare an unadjusted trial balance as of January 30, 2018.