Susan and Stan Britton are a married couple who file a joint income tax return, where the tax rates are based on the tax table 3.5. Assume that their taxable income this year was $412,000. Do not round intermediate calculation. What is their federal tax liability? Round your answer to the nearest cent. $ 119359.25 What is their marginal tax rate? Round your answer to two decimal places. 33 % What is their average tax rate? Round your answer to two decimal places.