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There is a bank account that earns 4.5 percent interest per year. Given the account balance, return the interest amount earned by the account after one year. (Difficulty Level: 1) getInterest(200) → 9.0 getInterest(1000) → 45.0 getInterest(50000) → 2250.0 ...Save, Compile, Run (ctrl-enter)  | 
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