LO.5, 7 On April 3, 2022, Luis filed his 2021 income tax return, which showed a tax due of $75,000. On June 1, 2024, he filed an amended return for 2021 that showed an additional tax of $10,000. Luis paid the additional amount. On May 18, 2025, Luis filed a claim for a 2021 refund of $25,000. a. If Luis's claim for a refund is correct in amount, how much tax will he recover? b. What is the period that government-paid interest runs with respect to Luis's claim for a refund? c. How would you have advised him differently