Final answer:
The annual cost of the manager's salary is $30,000.
Step-by-step explanation:
To determine the annual cost of a manager's salary, you need to know the manager's salary per unit of time (e.g., per month) and then multiply it by the number of units of time in a year.
To determine the annual cost of the manager's salary, we need to know the amount Larry hired the manager for. In this case, the manager is hired for $30,000 per year. Therefore, the annual cost of the manager's salary is $30,000.