Whats the best thing to use while buying time before getting a knee replacement surgery?

Based on the following data, accounts payable………………………………………………… $62,000 accounts receivable…………………………………………………. 100,000 cash……………………………………………………………… 30,000 inventory………………………………………………………………. 138,000 land………………………………………………………………….… 160,000 common stock ………………………………………………………. 200,000 revenue………………………………………………………………. 80,000 dividends……………………………………………………………… 56,000 expenses……………………………………………………………… 40,000 what is the amount of total assets?