138  5

           
                  ( %)

^                      ^.

^1,2                                     9.5

^2,                                     .

^3,4                                     8.5

12. ,    -  6%,   
       :

^,2= 9%.
^=10%.

      8%-    -
  $1000,    ?    -
   .   .

13. ,     .   -
 $1000   ,       $909,09.  
 $100     $1100   ,    
  $991,81.    $100   , $100 - 
   $1100 -    .       $997,18.

.      , -
  ,    ?

.   ?

.         $500   , $600 
    $700      ,     
 . ,    ,     
 ?

14.        6% .
    ,    -
  :

)   ;

)  (365   ).

15.       $30 000  -
   .       8%, 
  10     12%.      -
  ,     ,    .

.        
    , ,     -
    ?

.      (), ,   
  .

16.  Wall Street Journal   ,   Treasury bonds,
Notes & Bills.         
   ,  ,  ,     . 
        
.

17.  ,         -
  ,    
 ? .