Answer
$25$
Work Step by Step
Since some letters can be repeated, there are $5$ choices for the first letter and $5$ choices for the second letter as well. Therefore,
$5 \times 5 = 25$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 10 - Section 10.2 - Permutations and Combinations - 10.2 Assess Your Understanding - Page 695: 32
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