Answer
$$254988 m = 254.988 km.$$
Work Step by Step
We known that 1 km = 1000 m.
Therefore, $254988 m \div 1000= 254.988 km.$
Chemistry: A Molecular Approach (3rd Edition)
by Tro, Nivaldo J.
Published by
Prentice Hall
ISBN 10:
0321809246
ISBN 13:
978-0-32180-924-7
Chapter 1 - Sections 1.1-1.8 - Exercises - Problems by Topic - Page 39: 61a
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