text: # Math
  
  Imagine you have invested \$500 in an account that pays 5% simple interest per year. Can you find an arithmetic sequence to look for the amount of money in the account after 20 years?
  
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  1. since it is simple interest, the annual increase in the account would be .05(500) or \$25
  
  so in an A.S.
  a = 500
  d = 25
  n = 20
  
  term(20) = a+19d = 500 + 19(25) = 975
  
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  posted by Reiny
  
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