=+a) What percent of total costs and expenses were sales and marketing in 2008? In 2012?

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=+a) What percent of total costs and expenses were sales and marketing in 2008? In 2012?

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Business Statistics Plus Pearson Mylab Statistics With Pearson Etext

ISBN: 978-1292243726

3rd Edition

Authors: Norean R Sharpe ,Richard D De Veaux ,Paul Velleman

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