Check my work 7 O Required information [The following information applies to the questions displayed below.] Part 2 of 5 Grady received $8,280 of Social Security benefits this year. Grady also reported salary and interest income this year. 0.4 points What amount of the benefits must Grady include in his gross income under the following five independent situations? (Leave no answer blank. Enter zero if applicable.) eBook Print b. Grady files single and reports salary of $22,220 and interest income of $620. References Amount to be included 47