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Mathematics 8 Online
OpenStudy (anonymous):

Please help, fan and medal <3 Mark went to an electronic store, purchased 2 CDs and 6 DVDs, and spent $156. Antonio went to the same store, bought 1 CD and 9 DVDs, and spent $210. How much does each CD sell for at the store?

OpenStudy (anonymous):

@Hero

OpenStudy (mokeira):

@izthewiz7 have a look at how i have done it...i hope you understand

OpenStudy (anonymous):

omg, I understand! thank you so much. you're great.

OpenStudy (mokeira):

you're welcome :)

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