Use the formula B = Pnt, which is used to calculate the final balance of an investment or a loan after being compounded. Following is a list of what each variable represents:B represents the final balance.P represents the principal.r represents the annual percentage rate.t represents the time in years in which the principal is compounded.n represents the number of times the principal is compounded in a year.Sheila invests $20,000 in an account that is compounded semiannually. If, after one year, her balance is $22,472, what is the interest rate of the account?

A. 11%
B. 13%
C. 10%
D. 12%


Answer: D

Mathematics

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A.
B.
C.
D.

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A.
B.
C.
D.

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