You would use vous, since M. Bernard means Mr. Bernard, and is formal. Generally if you're addressing someone as "Mme." "M." or "Mlle.", it's formal.
1. 360h
2. 130h
3. 315h
4. 1100h
5. 135h
6. 720h
7. 15h
8. 450h
In order to solve these questions u just multiply. :) if u need anymore help with this just type in comments
Answer:
both of them are right I believe. I'm not 100% sure but that's what I think
I’m sorry I don’t see any information, if it’s a picture I don’t see it sadly
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