Please help me understand this. My professor is out for 2 more days because of new years holiday.

The ledger of Pharoah Company includes the following unadjusted balances: Prepaid Insurance $4,300, Service Revenue $57,100, and Salaries and Wages Expense $25,500. Adjusting entries are required for (a) expired insurance $1,500, (b) services performed $1,000 are billed and not yet collected, and (c) accrued salaries payable $900. Enter the unadjusted balances and adjustments into a worksheet and complete the worksheet for all accounts.

PHAROAH COMPANY Worksheet
		Trial Balance		Adjustments		Adjusted Trial Balance		Income Statement		Balance Sheet
Account Titles		Dr.		Cr.		Dr.		Cr.		Dr.		Cr.		Dr.		Cr.		Dr.		Cr.
Prepaid Insurance		enter a debit amount		enter a credit amount		enter a debit amount		enter a credit amount		enter an adjusted debit balance		enter an adjusted credit balance		enter a debit amount		enter a credit amount		enter a debit balance		enter a credit balance
Service Revenue		enter a debit amount		enter a credit amount		enter a debit amount		enter a credit amount		enter an adjusted debit balance		enter an adjusted credit balance		enter a debit amount		enter a credit amount		enter a debit balance		enter a credit balance
Salaries and Wages Expense		enter a debit amount		enter a credit amount		enter a debit amount		enter a credit amount		enter an adjusted debit balance		enter an adjusted credit balance		enter a debit amount		enter a credit amount		enter a debit balance		enter a credit balance
Accounts Receivable		enter a debit amount		enter a credit amount		enter a debit amount		enter a credit amount		enter an adjusted debit balance		enter an adjusted credit balance		enter a debit amount		enter a credit amount		enter a debit balance		enter a credit balance
Salaries and Wages Payable		enter a debit amount		enter a credit amount		enter a debit amount		enter a credit amount		enter an adjusted debit balance		enter an adjusted credit balance		enter a debit amount		enter a credit amount		enter a debit balance		enter a credit balance
Insurance Expense		enter a debit amount		enter a credit amount		enter a debit amount		enter a credit amount		enter an adjusted debit balance		enter an adjusted credit balance		enter a debit amount		enter a credit amount		enter a debit balance		enter a credit balance