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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?

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Describe a situation that you could represent with the inequality x< 17