Fees earned but not invoiced on November 30 were 1,100
Supplies on hand on November 30 were 380
Depreciation of equipment was estimated to be 2,200 for the year
The balance in unearned fees represented the November 1 receipt in advance for services to be providede. Only 800 of the services was provided between November 1 and November 30
Unpaid salaries accrued on November 30 were 400