22. What filing status options are available to Darlene, assuming she separated from her husband in March? Darlene is the sole suppon of her daughter, who lives with Darlene. 23. How do head of household expenses differ 24. Are all individuals required to file an income 25. Charles has interest income of $1,100 from the expenses used in the support test tax return? and no other income. He is claimed as a dependent by his parents. Is he required to file an income tax return? 26. Why might an individual file an income ta return even though not required to do so? 27. Under what circumstances must a return be filed by an individual even though there is only $800 in taxable income? 28. What is the difference between the tax tables and the tax rate schedules? 29. What is the limit for self-employmert