Answer
$55$
Work Step by Step
The expanded form of $67_{\text{eight}}$ is:
$=(6 \times 8^1) + (7 \times 1)
\\=(6\times 8) + 7
\\=48 +7
\\=55$
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 4 - Number Representation and Calculation - 4.2 Number Bases in Positional Systems - Exercise Set 4.2 - Page 226: 4
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