SANDHILL COMPANY Adjusted Trial Balance (partial) January 31, 2022 Debit Credit Supplies $868 Prepaid Insurance 1,908 Salaries and Wages Payable $1,310 Unearned Service Revenue 930 Supplies Expense 1,178 Insurance Expense 636 Salaries and Wages Expense 2,232 Service Revenue 4,960 Answer these questions, assuming the year begins January 1. (a) If the amount in Supplies Expense is the January 31 adjusting entry and $372 of supplies was purchased in January, what was the balance in Supplies on January 1? Supplies balance $