A partial adjusted trial balance of Sheffield Company at January 31, 2017, shows the following.

SHEFFIELD COMPANY

ADJUSTED TRIAL BALANCE

JANUARY 31, 2017

Debit

Credit

Supplies$970Prepaid Insurance4,020Salaries and Wages Payable$1,070Unearned Service Revenue1,020Supplies Expense950Insurance Expense670Salaries and Wages Expense2,070Service Revenue2,270

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

If the amount in Supplies Expense is the January 31 adjusting entry, and $850of supplies was purchased in January, what was the balance in Supplies on January 1?

Beginning balance of supplies$

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 1, 2016

August 1, 2016

August 31, 2016

.

If $2,770of salaries was paid in January, what was the balance in Salaries and Wages Payable at December 31, 2016?

Beginning balance of salaries and wages payable$

If $1,870was received in January for services performed in January, what was the balance in Unearned Service Revenue at December 31, 2016? Assume that there are no accounts receivable.

Beginning balance of unearned service revenue$