This is a partial adjusted trial balance of Sunland Company. SUNLAND COMPANY Adjusted Trial Balance (partial) January 31, 2022 Debit Credit Supplies $798 Prepaid Insurance 1,758 Salaries and Wages Payable $1,205 Unearned Service Revenue 855 Supplies Expense 1,083 Insurance Expense 586 Salaries and Wages Expense 2,052 Service Revenue 4,560 Answer these questions, assuming the year begins January 1. (a) If the amount in Supplies Expense is the January 31 adjusting entry and $342 of supplies was purchased in January, what was the balance in Supplies on January 1? Supplies balance $ Supplies balance $ (b) If the amount in Insurance Expense is the January 31 adjusting entry and the original insurance premium was for 1 year, what was the total premium and when was the policy purchased? Total premium for 1 year $ Purchase date (c) If $2,850 of salaries owed were paid in January, what was the balance in Salaries and Wages Payable at December 31, 2021? Balance in Salaries and Wages Payable at December 31, 2021 $ (d) If $2,052 was received in January for services performed in January, what was the balance in Unearned Service Revenue at December 31, 2021? Balance in Unearned Service Revenue at December 31, 2021 $