Final answer:
A small-business owner should consider factors such as salary, growth opportunities, professional development, and supervision when deciding to hire an additional employee.
Step-by-step explanation:
A small-business owner should consider several important factors when deciding whether to hire an additional employee. These factors include salary and benefits, growth and development opportunities, career advancement opportunities, professional relations, supervision and feedback, time pressure and tedium, and extra work requirements. The owner should analyze the financial aspect of hiring a new employee, such as the cost of salary and benefits, and assess the potential impact on the company's productivity and efficiency.