During August 2013, DB Inc. completed several financial transactions: 1) They purchased equipment for $50,000 with a 6 month, 8% note payable. 2) They issued $15,000 shares of $2 par stock at $8 per share. 3) They received an invoice for $450 in telephone services to be paid the next month. 4) They sold $320,000 in product sales and accrued 5% for future warranty costs.