Required information [The following information applies to the questions displayed below) William is a single writer (age 35) who recently decided that he needs to save more for retirement His 2020 AGI before the IRA contribution deduction is $66.000 (all earned income). (Leave no answer blank. Enter zero if applicable.) b. If he does participate in an employer-sponsored plan, what is the maximum deductible IRA contribution William can make in 2020 Maximum duct contion