Question

1. a highway has a posted speed limit of 65 mph. what does this mean? you must always drive 65 mph on that highway. you may drive faster only if there are no other vehicles. you must drive 65 mph only if driving conditions are ideal.

Explanation:

Speed limits are maximums, but driving conditions (e.g., weather, traffic) affect safe speed. The first option ignores conditions. The second is unsafe (speed limits are legal max, not situational). The third aligns with driving safety principles (ideal conditions might allow the limit; non - ideal require slower).

Answer:

You must drive 65 mph only if driving conditions are ideal.