a senior citizen gets a​ part-time job at a​ fast-food restaurant. she earns ​$ per hour for each hour she​ works, and she works exactly hours per week.​ thus, her total pretax weekly income is ​$. her total income tax assessment each week is ​$​, but she has determined that she is assessed ​$ in taxes for the final hour she works each week. part 2 this​ person's average tax rate each week is    enter your response here percent. ​(round your answer to one decimal​ place) part 3 the marginal tax rateloading... for the last hour she works each week is    enter your response here percent. ​(round your answer to one decimal​ place) quizlet