College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 9, Counting and Probability - Chapter 9 Review - Exercises - Page 683: 9



Work Step by Step

There are 26 options for the first, second and third letters, so in total there are $26 \times 26 \times 26 = 17576$ options.
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