1. Consider a 25 year loan for $150939 at an annual interest rate of 8%. If payments are made yearly, how many dollars of the 17th payment will go toward interest?
2. Juan has a goal of saving up $56282 by making biweekly (26 per year) deposits into a savings account for the next 7 years. If the account has an annual interest rate of 1.3%, how much should each of his deposits be?
3. Sherry has a goal of retiring with $325007 by making weekly deposits into an investment account whose annual interest rate is 1.3%. If she will retire in 23 years, how much interest will she earn?