Campbell, a single taxpayer, earns $$420,000$ in taxable income and $$3,000$ in interest from an investment in State of New York bonds. $($Use the U$.$S$.$ tax rate schedule.$)$

Required:

a$.$ How much federal tax will she owe?

b$.$ What is her average tax rate?

c$.$ What is her effective tax rate?

d$.$ What is her current marginal tax rate?

Complete this question by entering your answers in the tabs below.

How much federal tax will she owe?

Note: Do not round intermediate calculations. Round "Federal tax" to the nearest dollar.

Federal tax