The total sales S (in thousands) of a video game are given by at² S(t) = t2 +b where a = 90, b = 49, and t is the number of months since the release of the game. Find S(10) and S' (10). Use these results to estimate the total sales after 11 months. Do NOT compute the total sales after 11 months. approximately video games after 11 months

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