Determine the taxable amount of social security benefits for the following situations. a. Erwin and Eleanor are married and file a joint tax return. They have adjusted gross income of $42,600, no tax-exempt interest, and $14,910 of Social Security benefits.

A. As a result, $? of the Social Security benefits are taxable.

C. Assume Erwin and Eleanor have adjusted gross income of $95,500, no tax-exempt interest, and $14,325 of Social Security benefits. As a result, $? of the Social Security benefits are taxable.