Following is an extract of account balances of Wilson Mowing Services as of December 31 of the first year of operation. Accounts Receivable $7,000 Accounts Payable 4,000 Salaries Expense 6,000 Repairs Expense 500 Truck 8,000 Equipment 10,000 Notes Payable 8,100 Cash 7,300 Supplies Expense 1,400 Service Revenue 35,000 Gasoline Expense 3,800 Salaries Payable 300 What is the amount of total assets at the end of the year