1:1-39 PROBLEMS Tax Rates. Latesha, a single taxpayer, had the following income and deductions for the tax year 2019: INCOME: Salary $100,000 Business Income 25,000 Interest income from taxable bonds 10,000 Tax-exempt bond interest 5,000 TOTAL INCOME 140,000 DEDUCTIONS: Business expenses $ 9,500 Itemized deductions 20,000 TOTAL DEDUCTIONS 29,500 a. Compute Latesha's taxable income and federal tax liability for 2019 (round to dollars and ignore the qualified business income deduction for this problem). b. Compute Latesha's marginal, average, and effective tax rates. c. For tax planning purposes, which of the three rates in Part b is the most important