please answer both!!

Barnabas is 75 years old in 2020. He had $600,000 in his IRA account as of December 31, 2019. Barnabas is in a 22% tax bracket and has been retired for a number of years. How much is Barnabas' required distribution amount for the 2020 tax year? Jonah is 44 years old and his employer, Polson Corporation, contributes 15% of his salary to a qualified contribution plan for his pension (or up to the limit). Jonah's salary is $285,000. What is the maximum Jonah can contribute to his 401(k) plan in 2020