Grady received $8,440 of Social Security benefits this year. Grady also reported salary and interest income this year. What amount of the benefits must Grady include in his gross income under the following independent situations

1.Grady files single and reports salary of $22,660 and interest income of $660.

2.Steve was awarded a $6,500 scholarship to attend State Law School. The scholarship pays Steve's tuition and fees.

3.Hal was awarded a $24,200 scholarship to attend State Hotel School. All scholarship students must work 40 hours per week at the School residency during the term.