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Mathematics 20 Online
OpenStudy (anonymous):

http://static.k12.com/bank_packages/files/media/mathml_c87a9af2da6f6f7538b317a9c717a591cd6dfd45_1.gif

OpenStudy (anonymous):

i need help

OpenStudy (anonymous):

here are the answers

OpenStudy (anonymous):

A. –18 B. –9 C. 9 D. 18

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