SOLUTION: Determine whether the given is a valid ISBN. 1. 978-0-281 44268-5 2. 978-1-55690-182-9 3. 978-0-671-51983-4

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Question 1158510: Determine whether the given is a valid ISBN.
1. 978-0-281 44268-5
2. 978-1-55690-182-9
3. 978-0-671-51983-4

Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


and just how is this math?!