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January 30, 2015

January 30, 2015

Posted by **Leon** on Thursday, January 13, 2011 at 4:34pm.

- percentage -
**Enviromental Problems**, Thursday, January 13, 2011 at 4:36pmI think it is 20%. Because a each tenth is 10% and 70-50 equals a 20% increase. so i'm sure its 20%

- percentage -
**Ms. Sue**, Thursday, January 13, 2011 at 4:39pmSorry, but Environmental is wrong.

70-50 = 20 student increase

20/50 = 0.4 = 40% increase

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