The balance after one year is $4084.8
Therefore,
Simple interest = PRT / 100
where,
Therefore,
P = $4000
R = 2.12% = 2.12 / 100 = 0.0212
T = 1 year
Thus,
Simple interest = 4000 × 0.0212 × 1
Simple interest = $84.8
Therefore,
balance after one year = 4000 + 84.8 = $4084.8
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