The doubling time for a certain type of cell is 4 h. The number of cells after t hours is described by M) -N,2 where % is the initial population. Assume N = 3. Mt) = a) Determine the number of cells after 24 hours. b) How would the graph and the equation change if the doubling time were 2 h? c) What are the domain and range of this function in the context of this problem?

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