1. Dan plans to fund his individual retirement account (IRA) with a contributions of $4,000 at the end of each year for the next 25 years. If Dan can earn 7 percent per year on his contributions, how much will he have at the end of the 25h year? 2. If a Zero Coupon Bond can be purchased for $450 today and can be redeemed at the end of 10 years of $1,000, what is the annual rate of return on the bond? 3. Betty borrows $30,000 at S percent compounded annualy. The loan is to be repaid in six equal annual end-of year payments. How much must each loan be