Answer:
$20 simple interest.
Step-by-step explanation:
The simple interest that Sami earns is 4% of her deposit since she is trying to find how much she will earn in one year (given that the interest rate is 4% per annum).
[tex]\$500\times4\%=\$20[/tex]
∴ Sami earns $20 simple interest in one year.
Hope this helps :)