Question: Twitter did some analytics and found the following model: s(t) = -2.45t^3+21.91t^2+3.09t+26.57, where s(t) represents the number of worldwide subscribers (in millions) and t represents

Twitter did some analytics and found the following model: s(t) = -2.45t^3+21.91t^2+3.09t+26.57, where s(t) represents the number of worldwide subscribers (in millions) and t represents time in years after third quarter 2009. Calculate and interpret s(3).

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