How do you figure out the Depreciation expense and the accumulated deprecation-equipment for the above

Listed below are the transactions of William Brown, D.D.S., for the month of September. Sept. 1 Brown begins practice as a dentist, invests $20,160 cash and issues 2,016 shares of $10 par stock. 2 Purchases dental equipment on account from Green Jacket Co. for $17,580. 4 Pays rent for office space, $650 for the month. 4 Employs a receptionist, Michael Bradley. 5 Purchases dental supplies for cash, $870. 8 Receives cash of $1,540 from patients for services performed. 10 Pays miscellaneous office expenses, $410. 14 Bills patients $5,960 for services performed. 18 Pays Green Jacket Co. on account, $3,890. 19 Pays a dividend of $2,890 cash. 20 Receives $890 from patients on account. 25 Bills patients $2,010 for services performed. 30 Pays the following expenses in cash: Salaries and wages $1,780; miscellaneous office expenses $82. 30 Dental supplies used during September, $360