Answer:
$18,000
Explanation:
To find the Sales Revenue we simply add the $12,000 cash received immediately, and the $30,000 received as partial payment, totalling $42,000.
Then, we simply complete the proposed income statement:
Income Statement for the Month Ended in March 31
Sales Revenue $42,000
Rent Expense $9,600
Wage Expense $14,400
Net Income $18,000
Net Income is equal to Revenue - expenses.