Need answer on question 5. a) b) c).

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5. In a town whose population is 30,000, the number of people N infected t days after a disease has begun is given by the function 4000 Ni . () l+l9e'5r a) How many are initially infected with the disease (I = 0) ? Round to the nearest whole person. b) Find the number of people infected after 9 days. 0) Suppose the disease can be classied as \"epidemic\" when 5% of the population is infected. How many days will this take? Exact: Approx