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Mathematics 9 Online
OpenStudy (anonymous):

find the next three numbers; 3, 12, 21, 30 . . .

OpenStudy (anonymous):

it goes up by 9 .......39 , 48, 57

OpenStudy (jadeishere):

39, 48, 57 it goes up by 9, find the difference of the first two, and see if it goes along with the pattern

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