Compound interest is a. the fee that borrowers pay for temporary use of a lender’s money b. the initial amount of money invested c. the interest calculated based solely on the principal d. the interest calculated based on the principal as well as interest earned

D. the interest calculated based on the principal as well as interest earned.

D. the interest calculated based on the principal as well as interest earned.

Compound interest is usually the amount gained in a savings account monthly or quarterly it is usually displayed by the equation

A = p(1+r/n)^(Nt)

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