Consider a $$2,100$ deposit earning $9$ percent interest per year for four years.

What is the future value? $($Do not round intermediate calculations. Round your answer to $2$ decimal places.$)$

Future value

How much total interest is earned on the original deposit? $($Do not round intermediate calculations. Round your answer to $2$ decimal places.$)$

Total interest earned

How much is interest earned on interest? $($Do not round intermediate calculations. Round your answer to $2$ decimal places.$)$

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