Answer
Milligrams
Work Step by Step
Milligrams, Safety pin is a very light weight object, if we use grams i.e. 750 gram it will be too heavy which is not possible. So milligram is used.
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 - 7.3 The Metric System - Capacity and Weight (Mass) - 7.3 Exercises - Page 501: 8
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