How did you figure out the service revenue for the income statement

The trial balance of the Acme Accounting Firm on December 31 is as follows Cash Accounts receivable Supplies Equipment Accounts payable Unearned fees Common stock 1,610 1,900 820 27,860 ,050 ,800 7,800 400 Service revenue Wage expense Rent expense Utilities expense Misc. expense 1,450 8,210 3,790 5,250 1,260 a supplies on hand on Dec.31 were $31 b. Unbililed fees on Dec. 31 were $1,750 c depreciation of equipment was $1,600 d, wages accrued on Ded. 31 were 5380 e only 5700 of the accounting services prepaid by a clent have been provided