Answer:
Gwen's social security benefits are not taxable.
Step-by-step explanation:
Social security benefits are taxable when the all other income plus 50% of the social security benefit exceeds $25,000
Total income of Gwen is Wages of Part-time job $5,000 plus 50% of social security benefits and pension comes to $23,500 .
Therefore, Gwen's social security benefits are not taxable.