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December 20, 2014

December 20, 2014

Posted by **drew** on Tuesday, March 5, 2013 at 9:20pm.

A. 155

B. 152

C. 255

D. 135

I say A.

- algebra -
**Reiny**, Tuesday, March 5, 2013 at 10:38pmYou have an arithmetic series where

a = 2, d = 3, n = 10

sum(10) = (10/2)(4 + 9(3)) = 5(31) = 155

looks like you are right.

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