document.write( "Question 294403: What is Sn for the arithmetic series with d = -4, an = 27, and n = 9?
\n" ); document.write( "a. 360
\n" ); document.write( "b. 387
\n" ); document.write( "c. 418
\n" ); document.write( "d. 451
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Algebra.Com's Answer #212324 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Sum=\"9%28a1%2Ba9%29%2F2\"
\n" ); document.write( "\"a9=27\"
\n" ); document.write( "\"a1=27%2B8%2A4=27%2B32=59\"
\n" ); document.write( "Sum=\"9%2859%2B27%29%2F2=9%2886%29%2F2=387\"
\n" ); document.write( "b) is the answer.
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