A partial adjusted trial balance of Piper Company at January 31, 2014, shows the following. PIPER COMPANY ADJUSTED TRIAL BALANCE JANUARY 31, 2014 Debit Credit Supplies $810 Prepaid Insurance 3,060 Salaries and Wages Payable $910 Unearned Service Revenue 860 Supplies Expense 950 Insurance Expense 510 Salaries and Wages Expense 1,910 Service Revenue 2,110 Answer the following questions, assuming the year begins January 1. IE If the amount in Supplies Expense is the January 31 adjusting entry, and $850 of supplies was purchased in January, what was the balance in Supplies on January 1? Beginning balance of supplies $ IE LINK TO TEXT If the amount in Insurance Expense is the January 31 adjusting entry, and the original insurance premium was for one year, what was the total premium? Total premium $ When was the policy purchased? The policy was purchased on July 31, 2013August 31, 2013August 1, 2013 . IE LINK TO TEXT If $2,610 of salaries was paid in January, what was the balance in Salaries and Wages Payable at December 31, 2013? Beginning balance of salaries and wages payable $ IE LINK TO TEXT If $1,710 was received in January for services performed in January, what was the balance in Unearned Service Revenue at December 31, 2013? Beginning balance of unearned service revenue $