Explanation:
principal= 500dollars
rate= 4%
time=1 year
simple interest=principal x rate x time
100
simple interest= 500 x 4 x 1 = 2000/100 = 20
To find total amount money in the account
= simple interest + principal
= 20 + 500
= 520dollars
she has $520 after 1 year.
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