Final answer:
The three key benefits from full-time employment include health insurance, retirement savings plans like 401(k)s, and contributions to Social Security, all contributing to financial security and well-being.
Step-by-step explanation:
Three benefits often gained from holding a full-time job include health insurance, retirement and savings plans like 401(k), and contributions to Social Security. Health insurance provides essential coverage for medical expenses, minimizing out-of-pocket costs for healthcare. Retirement and savings plans, particularly defined contribution plans such as 401(k) or 403(b) plans, are crucial for long-term financial security, allowing employees to invest pre-tax income into various investment vehicles for their retirement, with contributions made regularly by both employee and employer. These plans are also portable, meaning they can be taken along if you change jobs. Additionally, through full-time employment, individuals contribute to Social Security, which offers a safety net for retirement, disability, or other life events.