4 of What is the amount of net income it ABC firm has the following balances in their accounts Sales revenue JD12000 prepaid expense JD2 000 Service revenue: JD2.000 Advertising expense JD500 Deidends JO1000 Salaries expense JO1.800 Utilites expense JD150 Rent Expense JD 1.000 Maintenance expense J0600 7550 45 9.950