Sheffield is a licensed dentist. During the first month of the operation of her business, the following events and transactions occurred. April 1 Invested $18,000 cash in her business. 1 Hired a secretary-receptionist at a salary of $700 per week payable monthly. 2 Paid office rent for the month $1,000. 3 Purchased dental supplies on account from Dazzle Company $3,800. 10 Performed dental services and billed insurance companies $5,400. 11 20 288 30 30 Received $1,000 cash advance from Leah Mataruka for an implant. Received $2,400 cash for services performed from Michael Santos. Paid secretary-receptionist for the month $2,800. Paid $2,480 to Dazzle for accounts payable due.