Final answer:
Manager A has an hourly wage of $15, while Manager B's hourly wage is not specified, making it impossible to determine the comparison or the hours needed for B to earn more.
Step-by-step explanation:
The information provided states that Manager A earns $15 per hour and receives a $50 bonus. However, the hourly wage for Manager B is not specified in the question. To compare their hourly wages, we need the specific earnings per hour for Manager B. Without this information, we cannot definitively determine which manager has a greater hourly wage.
To illustrate, if Manager B's hourly wage is $20, then Manager B would have a higher hourly wage than Manager A, as the bonus does not affect the hourly rate. On the other hand, if Manager B's hourly wage is less than $15, Manager A would have the greater hourly wage. The absence of Manager B's hourly wage prevents a conclusive comparison between the two.
Without the necessary information on Manager B's hourly wage, it is also impossible to determine after how many hours Manager B earns more money than Manager A. The number of hours required for Manager B to surpass Manager A's total earnings depends on Manager B's hourly wage, making this calculation contingent on additional data not provided in the question.