Final answer:
The maximum daytime speed limit on highways in the United States varies depending on the location and can range from about 55 to 80 miles per hour.
Step-by-step explanation:
The maximum daytime speed limit for passengers on a highway numbered by this state or the United States varies depending on the specific location. In general, speed limits on highways in the United States range from about 55 to 80 miles per hour. It is important to check the speed limit signs and regulations of the specific state or location to know the exact maximum speed limit.