Final answer:
The number of practice hours that must be recorded in the Practice Skills Log depends on the state's requirements for drivers under age 25.
Step-by-step explanation:
The number of hours of practice that must be recorded in the Practice Skills Log for drivers under age 25 depends on the state's requirements. Each state has its own rules and regulations regarding the number of practice hours needed before obtaining a driver's license. For example, some states may require a minimum of 40 hours or more, while others may require fewer hours. It is important to check the specific requirements of the state in which the driver is located to determine the exact number of practice hours needed.