The annual income tax paid by the person is: $4,500.
Using this formula
Annual income tax=[Salary per month÷(1-percentage deduction)]- Salary per month
Let plug in the formula
Annual income tax=[40,500÷(1-10%)]-40,500
Annual income tax=45,000-40,500
Annual income tax=$4500
Therefore the annual income is $4,500.
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