Ms. Calhoun is age 48 and single. Required: a. What is the maximum contribution that she can make to a Roth IRA if her AGI consists of an $89,400 salary from her employer? b. What is the maximum contribution that she can make to a Roth IRA if her AGI consists of an $89,400 salary plus $40,000 interest and dividends from a trust fund? c. What is the maximum contribution that she can make to a Roth IRA if her AGI consists of a $125,000 salary plus a $19,250 share of ordinary income from a partnership? X Answer is complete but not entirely correct. Complete this question by entering your answers in the tabs below. Required A Required B Required C What is the maximum contribution that she can make to a Roth IRA if her AGI consists of an $89,400 salary plus $40,000 interest and dividends from a trust fund? (When applicable, round phase-out percentage to the nearest whole number.) Maximum contribution $ 1,760