Posted by **sarah** on Monday, April 22, 2013 at 1:52am.

1)find the sum of the odd integers from 25 to 75

2)find the sum of the first 20 terms in the series 10+5+2.5+1.25... .

please show the steps to solve the problem^_^

- math -
**Anonymous**, Sunday, August 28, 2016 at 12:12pm
88

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