Mathematics, 28.09.2019 15:30 ijohnh14

Marilee takes all the money from her piggy bank and puts it into a savings account at her local bank. the bank promises an annual interest rate of 2.5% on the balance, compounded semiannually. how much will she have after one year if her initial deposit was $400?
a) $390.06
b) $420.25
c) $410.06
d) $420.50
can you leave an explanation too?

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