8. Mary, a single individual age 39 qualifying for head of household filing status, attended college full-time for 10 months in 2022 on a full scholarship valued at $15,000. While attending college, Mary incurred childcare expenses of $3,500 related to the care of her dependent daughter Sally (age 11). Marys only income in 2022 was $30,000 of rental income. Mary did not itemize deductions. Calculate Marys tax liability for 2022.