c. If he does not participate in an employer-sponsored plan, what is the maximum deductible IRA contribution John can make in 2020 if he has earned income of $13,400? Maximum deductible IRA contribution $ 7,000 b. If he does participate in an employer-sponsored plan, what is the maximum deductible IRA contribution John can make in 2020? Maximum deductible IRA contribution $ 4,800 Required information [The following information applies to the questions displayed below.] John (age 55 and single) has earned income of $4,800. He has $34,600 of unearned (capital gain) income. a. If he does not participate in an employer-sponsored plan, what is the maximum deductible IRA contribution John can make in 2020? Maximum deductible IRA contribution $ 4,800