Answer
256
Work Step by Step
We can choose whether to pick one type, or not.
By the fundamental counting principle,
$2*2*2*2*2*2*2*2 = 2^8 = 256$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter 9, Counting and Probability - Section 9.1 - Counting - 9.1 Exercises - Page 657: 38
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