Final answer:
A server's income is primarily derived from both wages and tips, with wages paid hourly and tips collected from customers for services provided. Working additional hours may increase earnings, but it's not considered the main source of income. Servers tend to have limited benefits, making hourly wages and tips the most significant income sources.
Step-by-step explanation:
The income of a server is usually derived from both wages and tips. This combination is typical in the hospitality industry where servers are paid an hourly wage and also earn tips based on the service they provide to customers. In the United States, the labor income of an individual, including a server, depends on how many hours they work and the wage rate an employer will pay them for those hours. Additionally, tips are received directly from customers as a form of labor income that can significantly supplement a server's earnings.
While servers can earn income from working additional hours, this option is not typically considered the primary source of income for servers and is excluded from the options. Servers typically do not have a salary structure but are paid hourly, and often their benefits are limited, making 'salary and benefits' a less common combination for servers. Therefore, the most accurate description of a server's income is a combination of hourly wages and the tips they collect from providing service.