Answer
He is still missing $18.40$ dollars.
Work Step by Step
$48.40$ dollars were stolen and he got $30$ back.
$$(-48.40) + 30 = -18.40$$
He is still missing $18.40$ dollars.
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 9 - Basic Algebra - 9.2 Adding and Subtracting Signed Numbers - 9.2 Exercises - Page 640: 22
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