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January 31, 2015

January 31, 2015

Posted by **Lyn** on Thursday, December 26, 2013 at 6:59pm.

a. 11

b. 12

c. 13

d. cannot be determined without more information

- statistics -
**Kuai**, Thursday, December 26, 2013 at 10:59pm20-8 = 12

Ans b

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