Use the matrix to solve the system of equations 5x-4y=28 7x+5y=18

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

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An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute