a$)$ On November $9,2024$ Ann$$s boss at work says that if Ann works overtime through the rest of the year, she will receive $$1,000$ more wages. What is Ann$$s federal marginal tax rate on the additional $$1,000$ of wage income? $($Ignore FICA taxes and state income tax.$)($Review item #$1$ in Phase$-$outs table to assist you.$)$

Note: Answer is not $10\%!$