Adjusting entries affect at least one balance sheet account and at least one income statement account. For the following entries, identify the account to be debited and the account to be credited. Indicate which of the accounts is the income statement account and which is the balance sheet account.
a. Entry to record revenue earned that was previously received as cash in advance.
b. Entry to record annual depreciation expense.
c. Entry to record wage expenses incurred but not yet paid (nor recorded).
d. Entry to record revenue earned but not yet billed (nor recorded).
e. Entry to record expiration of prepaid insurance.