Marginal tax

Marginal tax
Chuck, a single taxpayer, earns 87,250 in taxable income and 32,500 in interst from an investment in city bounds. ( use te US tax rate schedule) do not round intermediate calculations. Round your answers to 2 decimal places

A. If chuck earns an additional 63,750 of taxable income, what is his marginal tax rate on this income?

Marginal tax rate=

B. What is his marginal rate if, instead, he had 63,750 of additional deductions?

Marginal tax rate=