Answer:
$22,020
Explanation:
Given, (Before Adjustment)
Unearned Service Revenue $6,600
Service revenue $17,190
The adjusting entry to record the expired unearned revenue is
Debit   Unearned Service Revenue   $4,830
Credit      Service revenue          $4,830
Therefore, the amount of Service Revenue Earned to be reported in the March income statement is as follows:
Service revenue before adjustments        =  $17,190
Unearned Service Revenue earned in March = Â $4,830
Service revenue after adjustment         = $22,020