Final answer:
The metro radio system code for a fire is 10-18.
Step-by-step explanation:
The metro radio system code for a fire is 10-18.
The use of radio codes is common in emergency services to quickly communicate information without broadcasting it over the airwaves. This helps maintain confidentiality and efficiency.
For example, if there is a fire reported in a specific area, emergency personnel can use the code 10-18 to communicate that information to other units in their network.