Is the following UPC valid or invalid 1-87547-55403-3?
Valid
Invalid; d = 0
Invalid; d...
![subject](/tpl/images/cats/mat.png)
Mathematics, 01.03.2021 01:00 toxsicity
Is the following UPC valid or invalid 1-87547-55403-3?
Valid
Invalid; d = 0
Invalid; d = 5
Invalid; d = 7
![ansver](/tpl/images/cats/User.png)
Answers: 1
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