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English 16 Online
OpenStudy (anonymous):

Which sentence correctly forms the plural of the number 9? A. Judd's phone number is easy to remember because it has so many 9's in it. B. Judd's phone number is easy to remember because it has so many 9s' in it. C. Judd's phone number is easy to remember because it has so many 9s in it.

OpenStudy (anonymous):

A

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