#### Answer

Because the leftmost digit is a $1,$ the number is negative. The magnitude
is represented by the remaining 7 digits, $0010111,$ which is $1+2+4+$
$16=23 .$ Thus, the number is $-23 .$

Published by
Cengage Learning

ISBN 10:
1337561916

ISBN 13:
978-1-33756-191-4

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