Leslie is a single taxpayer who is under age 65 and in good health. For 2019, she has a salary of $24,000 and itemized deductions of $1,000. Leslie allows her mother to live with her during the winter months (3–4 months per year), but her mother provides all of her own support otherwise. 

a. How much is Leslie’s adjusted gross income? 

b. What amount of itemized or standard deduction(s) should she claim? 

c. What is the amount of Leslie’s taxable income?