Final answer:
A manager at a fast-food restaurant is responsible for giving instruction to the staff and setting up work schedules.
Step-by-step explanation:
A manager at a fast-food restaurant would be responsible for giving instruction to the staff and for setting up work schedules. As the manager, they would be in charge of overseeing the day-to-day operations of the restaurant and ensuring that everything runs smoothly. They would also be responsible for hiring and training new employees, handling customer complaints, and managing inventory and finances.