2019 tax rate schedule

Campbell, a single taxpayer, earns $302,000 in taxable income and $6,800 in interest from an investment in State of New York bonds. (Use the U.S. tax rate schedule). Required: a. If Campbell earns an additional $21,000 of taxable income, what is her marginal tax rate on this income? b. What is her marginal rate if, instead, she had $21,000 of additional deductions? (For all requirements, do not round intermediate calculations.) % a. b. Marginal tax rate Marginal tax rate