1. A recent advertisement in the financial section of a magazine carried the following claim: "Invest your money with us at 14%, compounded semiannually, and we guarantee to double your money sooner than you imagine." How long would it take to double your money at 14%, semiannual compounding?

2. Sugar Land Realty has total equity of $815,280, long-term debt of $391,900, net working capital of $49,500, and total assets of $1,292,485. What is the total debt ratio?