1.) Marcy is a 17 year old dependent high school student with income from wages of $8,000 and $4,000 of interest income from bonds given to her by her grandparents. What is Marcy's total income tax liability for the year 2021?

2.) Delia Mertz is an unmarried person who is 75 years old. She has the following income during 2021:

Fully Taxable Pension $20,000

Interest from First Bank $2,000

Social Sec Benefits $14000

What is the taxable amount of her social security benefits?