Answer
$155,480,000$
Work Step by Step
We have 7 places, the 1st and 2nd places can take 26 letters each, the 3rd place 23 letters, other places take 10 digits each, thus the total outcome is
$N=26^2(23)(10)^4=155,480,000$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 12 - Counting and Probability - Chapter Test - Page 889: 11
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