In 1923, the U.S. Federal Communications Commission directed that all new radio stations east of the Mississippi

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In 1923, the U.S. Federal Communications Commission directed that all new radio stations east of the Mississippi River have call letters beginning with the letter W. How many different three- or four-letter call letters are possible?

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Finite Mathematics And Its Applications

ISBN: 9780137616619

13th Edition

Authors: Larry J. Goldstein, David I. Schneider, Martha J. Siegel , Jill Simmons

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