2. Belle files Head of Household. She has two children, who are ages 14 and 16 at the end of the current tax year (both are qualifying dependents). Her taxable income is $60,000 and her tax liability before any payments or credits is $7,548. Her employer has withheld $5,000 in federal income taxes from her paycheck. What is Belle's tax due or refund? Be sure to consider all possible credits based on the information above. (3 points) a. b. Assume if the older child is 18 instead of 16. What is Belle's tax due or refund? Once again, be sure to consider all possible credits based on the information available to you. (1 point)