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Mathematics 7 Online
OpenStudy (anonymous):

how do you find the common difference in the sequence 2,2,3,3,4,4,5,5,6,6,7,7... etc. ?????

OpenStudy (anonymous):

the common difference formula is a2-a1

OpenStudy (anonymous):

The sequence there is the number of seats to the 12th row, I need to find how many seats are in the 51st row?

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