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Pre-Algebra 14 Online
OpenStudy (yacoub1993):

10. Write a number sentence for the model. Let one white tile equal +1 and one black tile equal –1 i attached a pic

OpenStudy (amoodarya):

where is pic?

OpenStudy (yacoub1993):

i found it thnxs alot

OpenStudy (anonymous):

the black tile equals 2

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