I am having a hard time with the general ledger, the statement of retained earnings, and the trial balance. I am having hard time understanding

The following transactions occurred during the month of December, 20XX: Dec. 2 Paid $1,025 cash to Hillside Mall for Business Solutions's share of mall advertising costs. 3 Paid $500 cash for minor repairs to the company's computer. 4 Received $3,950 cash from Alex's Engineering Co. for the receivable from November. 10 Paid cash to Lyn Addie for six days of work at the rate of $125 per day. 14 Notified by Alex's Engineering Co. that Business Solutions' bid of $7,000 on a proposed project has been accepted. Alex's paid a $1,500 cash advance to Business Solutions. 15 Purchased $1,100 of computer supplies on credit from Harris Office Products. 16 Sent a reminder to Gomez Co. to pay the fee for services recorded on November 8th. 20 Completed a project for Liu Corporation and received $5,625 cash. 22-26 Took the week off for the holidays. 28 Received $3,000 cash from Gomez Co. on its receivable. 29 Reimbursed S. Rey for business mileage (600 miles at $0.32 per mile). 31 The company paid $1,500 cash in dividends. Adjustments: The additional facts are collected for use in making adjusting entries prior to preparing financial statements for the company's first three months. a. The December 31 inventory count of computer supplies show $580 still available. b. Three months have expired since the 12-month insurance premium was paid in advance. c. As of December 31, Lyn Addie has not been paid for four days of work at $125 per day. d. The computer system acquired on October 1 has $1,250 of deprecation that needs to be recorded. e. The office system acquired on October 1 has $400 of deprecation that needs to be recorded. g. Three of the four months' prepaid rent have expired. The following transactions occurred during the month of December, 20XX: Dec. 2 Paid $1,025 cash to Hillside Mall for Business Solutions's share of mall advertising costs. 3 Paid $500 cash for minor repairs to the company's computer. 4 Received $3,950 cash from Alex's Engineering Co. for the receivable from November. 10 Paid cash to Lyn Addie for six days of work at the rate of $125 per day. 14 Notified by Alex's Engineering Co. that Business Solutions' bid of $7,000 on a proposed project has been accepted. Alex's paid a $1,500 cash advance to Business Solutions. 15 Purchased $1,100 of computer supplies on credit from Harris Office Products. 16 Sent a reminder to Gomez Co. to pay the fee for services recorded on November 8th. 20 Completed a project for Liu Corporation and received $5,625 cash. 22-26 Took the week off for the holidays. 28 Received $3,000 cash from Gomez Co. on its receivable. 29 Reimbursed S. Rey for business mileage (600 miles at $0.32 per mile). 31 The company paid $1,500 cash in dividends. Adjustments: The additional facts are collected for use in making adjusting entries prior to preparing financial statements for the company's first three months. a. The December 31 inventory count of computer supplies show $580 still available. b. Three months have expired since the 12-month insurance premium was paid in advance. c. As of December 31, Lyn Addie has not been paid for four days of work at $125 per day. d. The computer system acquired on October 1 has $1,250 of deprecation that needs to be recorded. e. The office system acquired on October 1 has $400 of deprecation that needs to be recorded. g. Three of the four months' prepaid rent have expired