Hello.i didnt undrstand why he didn't use -de km - for the first sentence below
How far is it from here to your home -il y a combien d'ici a chez toi
How far is it from Paris to Lyon -il y a combien de km de Paris a Lyon
I cannot find these examples in the Kwiziq lesson but just to say that (de km) is implied in your first example which is very common in French.
I suggest that you click on the question to raise a query - there may be an error that needs to be reported.
The question does not specify units.. could be yards, miles or hours.. more an example of how to use il y a into what looks an open question... think for that, I would have used A qu'elle distance.. but that does not help with il y a.. you will find a lot of examples that don't really make sense out of context but are just showing something about the lesson.
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