If interest is compounded semiannually, what is n in the compound interest formula shown below?

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If interest is compounded semiannually, what is n in the compound interest formula shown below?

If interest is compounded semiannually, what is n in the compound interest formula shown below? A equals P left parenthesis 1 plus r over n right parenthesis to the power of n t end exponent A. 1 B. 2 C. 4 D. 12