Exercise 4-26 (Algorithmic) (LO. 4) Determine the taxable amount of social security benefits for the following situations. If required, round your answers to the nearest dollar. If an amount is zero, enter "0" a. Erwin and Eleanor are married and file a joint tax return. They have adjusted gross income of $40,400, no tax-exempt interest, and $14,140 of Social Security benefits. As a result, Asares412,01ey X ofthe eoftsaretanotareempt 12,019 X of the Social Security benefits are taxable