# Sequences and series questions

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• October 25th 2010, 10:24 AM
Moonstruck
Sequences and series questions
hey, i wanna delete this dont know how
• October 25th 2010, 11:47 AM
JRichardson1729
If we take the number of trees in a given year as $T_y$ with $y$ being the year. The formula for $T_y$ would be $T_y=T_y_-_1-\frac{T_y_-_1}{5}+850$. Apologies in advance if this is wrong.