John (age 54 and single) has earned income of $3,600. He has $32,200 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 2015?

b.

If he does participate in an employer-sponsored plan, what is the maximum deductible IRA contribution John can make in 2015?

c.	If he does not participate in an employer-sponsored plan, what is the maximum deductible IRA contribution John can make in 2015 if he has earned income of $12,000?