Graph each of the following piecewise function below

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

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Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.