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Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

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?