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Mathematics 20 Online
OpenStudy (winsteria):

PLEASE HELP

OpenStudy (anonymous):

what do u need

OpenStudy (anonymous):

B

OpenStudy (anonymous):

can i get medal

OpenStudy (anonymous):

welcome

OpenStudy (study312):

My guess was A or B but @ages seems more confident

OpenStudy (study312):

sure

OpenStudy (study312):

subtraction property, because I thought you use addition when the = number is a negative

OpenStudy (study312):

np

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