Answers edited by e52fa787

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• How do you find the sum of the finite geometric sequence of `Sigma (5/2)^(n-1)` from n=1 to 10?
  
• How do you solve `x-3y=-9` and `x+3y=3` by graphing?
  
• What happens when limestone comes in contact with an acid? Why?
  
• Question #e4fb1