French phrase
Combien de ~ sont autorisés ?
Meaning
How many ___ are allowed?
When to use it
A polite question about the maximum permitted quantity. It is common when checking travel or carry-on limits.
Example dialogue
Combien de bagages supplémentaires sont autorisés ?
How many additional bags are allowed?
Chaque passager peut emporter un bagage en cabine et un en soute.
Each passenger can bring one carry-on bag and one checked bag.