Alex invested $400 in a CD that pays 3% simple interest, calculated semiannually. How much money will Alex earn in 2 years? A. $74 B. $24 C. $54 D. $14
Simple interest is calculated using the formula I = Prt . . . . . . . . . . P = principal, r = interest annual rate, t = time (years) I = $400·0.03·2 I = $24