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OpenStudy (anonymous):
What is the sum of a 14-term arithmetic sequence where the last term is 30 and the common difference is -5? A. 875 B. 812.5 C. 455 D. 422.5
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OpenStudy (anonymous):
can you help me?
OpenStudy (loser66):
the answer is A) 875
OpenStudy (anonymous):
Are you sure ?:)
OpenStudy (loser66):
sure.
OpenStudy (anonymous):
THANK YOU
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OpenStudy (loser66):
np
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