SOLUTION: find the sum of first 29 multiple with 25?

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Question 884740: find the sum of first 29 multiple with 25?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
S=t*(1 - r^n)/(1 - r)
S=25*(1 - 25^29)/(1 - 25)