Determine a 1 for the arithmetic sequence. a 7 = 23.5, a 20 = 69

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Determine a1 for the arithmetic sequence.

a7 = 23.5, a20 = 69

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Related Book For  answer-question

College Algebra

ISBN: 978-0134697024

12th edition

Authors: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

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