William is a single writer (age 35) who recently decided that he needs to save more for retirement. His 2018 AGI is $67,000 (all earned income).
a. If he does not participate in an employer-sponsored plan, what is the maximum deductible IRA contribution William can make in 2018?
b. If he does participate in an employer-sponsored plan, what is the maximum deductible IRA contribution William can make in 2018?
c. Assuming the same facts as in part (b) except his AGI is $76,000, what is the maximum deductible IRA contribution William can make in 2018?