A partial adjusted trial balance of Pharoah Company at January 31, 2022, shows the following. PHAROAH COMPANY Adjusted Trial Balance January 31, 2022 Debit Credit Supplies $900 Prepaid Insurance 2,400 Salaries and Wages Payable $900 Unearned Service Revenue 750 Supplies Expense 800 Insurance Expense 400 Salaries and Wages Expense 3,200 Service Revenue 2,300 Answer the following questions, assuming the year begins January 1. (a) If the amount in Supplies Expense is the January 31 adjusting entry and $1,000 of supplies was purchased in January, what was the balance in Supplies on January 1? 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 $ Purchase date (c) If $3,300 of salaries owed were paid in January, what was the balance in Salaries and Wages Payable at December 31, 2021? Salaries and wages payable $