A partial adjusted trial balance of Piper Company at January 31, 2025, shows the following.

Piper Company Adjusted Trial Balance January 31, 2025
		Debit		Credit
Supplies		$ 940
Prepaid Insurance		3840
Salaries and Wages Payable				$ 1040
Unearned Service Revenue				990
Supplies Expense		950
Insurance Expense		640
Salaries and Wages Expense		2040
Service Revenue				2,240

Instructions

Answer the following questions, assuming the year begins January 1.

1. 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?
2. 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 and when was the policy purchased?
3. If $2,740 of salaries was paid in January, what was the balance in Salaries and Wages Payable at December 31, 2024?
4. If $1,840 was received in January for services performed in January, what was the balance in Unearned Service Revenue at December 31, 2024?