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gayaneshka [121]

3 years ago

11

Please help me with this and explain it to me, thank you!

1 answer:

MArishka [77]3 years ago

7 0

9+2=X
F(x)=f(9) + 2(9 - 1) if i remember correctly.
there would be 31 seat in the 12th row

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- - -

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