Can you mix bx and romex in a CB panel?

Yes, you can mix BX (flexible metal conduit) and Romex (non-metallic sheathed cable) in a circuit breaker (CB) panel, as long as the wiring methods comply with local electrical codes and the panel is properly configured for the different types of wiring. However, it's important to ensure that the connections are secure and that the appropriate fittings and connectors are used to maintain safety and code compliance. Always consult local regulations or a licensed electrician when in doubt.