For each additional employee in a cosmetology salon, how many square feet are required?

In Minnesota cosmetology establishments, state regulations require a specific amount of space for each employee to ensure a comfortable and safe working environment. The correct answer of 50 square feet per additional employee reflects the state's standards for spatial requirements in the salon setting. This guideline aims to prevent overcrowding, allowing for adequate movement, equipment space, and compliance with health and safety standards. It is crucial for salons to adhere to this space requirement not only for compliance but also to enhance the overall service quality and comfort for both employees and clients. Other numbers provided do not align with the current regulations, which is why they would not be considered correct in the context of Minnesota cosmetology laws.