• Olivia is single, 66 years old, and not blind.
• She paid all the cost of keeping up her home. She earned $55,000 in wages for 2019.
• Olivia provided all the support for her two grandchildren who lived with her all year. Cora is 11 years old and Jack is 15 years old.
• She does not have enough deductions to itemize.
• Olivia, Cora, and Jack are all U.S. citizens with valid Social Security numbers.

1. What is the amount of Olivia's standard deduction?