Kennen sie die Preise?
I have this sentence written down from the Money Skill. Is kennen the most suitable verb? If the prices are a fact... shouldn't it be "Wissen sie die Preise?"
Kennen oder wissen... which one sounds more natural?
It is often best to use "kennen" if you refer to a noun or similar and "wissen" if you refer to a clause.
"Kennen Sie die Preise?" and "Wissen Sie, wie viel es kostet?"
In your sentence, "kennen" is best.
I hope I could be of help.