A. Insurance expired during December is $150. Paid $1,800 for a one year premium on property and casualty insurance. The policy covers the period December 20X1 to November 30 20X2
1. I DR insurance expense $150
2. CR prepaid insurance $150

B. Supplies on hand on December 31 are valued at $1,320. Bought supplies for $1250 then purchased additional supplies for $1,600.
1. I DR supplies expense $1320
2. CR supplies $1320

C. Depreciation of office equipment for December is $148. Office equipment purchased $16,000, then purchased more for $1,800.
1. DR depreciated expense $148
2. CR accumulated expense $148

D. Rent expired during December is $1,100. Paid $3,300 for rent for December 20x1 to February 28 20x2
1. DR rent expense $1,100
2. CR prepaid rent $1,100

E. Determined that company had performed $2,200 of the services for which it was paid on December 4th.
1. DR accounts receivable $2,200
2. CR fees earned $2,200

F. Employees wre owed $1,000 for the month of December. They were paid on January 2nd.
1. DR wage expenses $1,000
2. CR wages payable $1,000

G. Services were performed for a client on December 31 in the amount of $750. The client did not pay nor has the client been billed.
1. DR accounts receivable $750
2. CR fees earned $750

Is that right? Please let me know what's right and what is wrong. I can't seem to come up with the correct figures for the final balance.

B. Supplies account will have an unadjusted balance of $1,250 + $1,600. Your ending balance is $1,320. Take the ($1,250 + $1,600) - $1,320 to get your Supplies Expense

C. Your Debit will be to Depreciation Expense and your Credit will be to Accumulated Depreciation - Office Equipment.

E. Your Debit should be Unearned Fees Earned and your Credit should be to Fees Earned.

The rest of your entries look good.