1.  4.06%
  2.  $1600
  3.  $639.02
  4.  $1,584.26
  5.  $373,107.71
  6.  $17,993.32
  7.  $472.41
  8.  $103,150.83 is the largest possible loan.
      They will pay $100,849.17 in interest.
  9.  Largest possible mortgage is $106,449.68.
      Amount of interest is $148,550.32.
      Interest per $1 of loan is $1.40.
  10. $707.65
  11. $1653.70
  12. Interest rate   Amount of payment
      =============   =================
      6%              $299.78
      7%              $332.65
      8%              $366.88
      9%              $402.31
      10%             $438.79
  13. Value in 1990 with 5% interest is $16,008,907.08.
      Value in 1990 with 6% interest is $401,785,435.74.
      Increase is a factor of 24.0976, or 2409.76%.
  14. (1+.005)^12 = 1.06168.  Therefore, one dollar which increases
      at .5% monthly, compounded monthly for a year, gives approximately
      $1.062, corresponding to an annual rate of 6.2%.
  15. The salary of $3400 per month plus bonus.
  16. Amount $69,770.03, present value = $51,725.56
  17. $11,284.79.
  18. Use formula 9.8 to verify the entries in the table.
  19. $2576.56.
  20. 144.4% in 2 years, or 72.2% per year.