Complex sentence: The mosque now offers courses open to the general public, and weekly attendance has tripled and the Mosque continues to exert a very powerful attraction for Muslim refugees from North African countries who operate and visit numerous cafes and shops on Blackstock Road.
Split into simpler sentences: The mosque now offers courses open to the general public, and weekly attendance has tripled. However, the Mosque continues to exert a very powerful attraction for Muslim refugees from North African countries who operate and visit numerous cafes and shops on Blackstock Road.