maxine's only income for 2021 consisted of 54,000 in wages and $1800 in interest income. She is 50 years old and will use the single filing status. She is covered by an employer-sponsored retirement plan but would like to contribute to a traditional IRA if it will lowe her tax liability. Assuming she has no other adjustments to income, what is the maximum, fully deductible amount she can contribute to a traditional IRA for 2021?