52. Spread of Flu The spread of flu in a certain school is modeled by the equation 200 P(t) where P(1) is the total number of students infected t days after the flu first started to spread. (a) Estimate the initial number of students infected with this flu. (b) How fast is the flu spreading after 4 days? (c) When will the flu spread at its maximum rate? What is that rate?

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