Answer
mg
Work Step by Step
One postage stamp weighs 90 mg . Weight can be measured in Kg, g or mg. If we choose 90 kg or 90 g it will be too heavy weight for the postage stamp. So 90 mg is the correct choice.
Basic College Mathematics (9th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0321825535
ISBN 13:
978-0-32182-553-7
Chapter 7 - Measurement - Review Exercises - Page 527: 75
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