Answer:
Closing entries
Date account and explanation Debit Credit
Dec 31 Service revenue 108000
Income summary 1080000
(To close revenue)
Dec 31 Income summary 72000
Supplies expense 6000
Salaries and wages expense 40000
Utilities expense 8000
rent expense 18000
(To close expense)
Dec 31 Income summary 36000
Owner's capital 36000
(To close income summary)
Dec 31 Owner's capital 22000
Owner's Drawing 22000
(To close withdrawal)