They are ansi apostrophies, not UTF-8 ones. Probably a function of how they were created/entered. Either that or a problem with your database character set.
Kind of depends. If this page is all you have done, then just set your database to be UTF-8 character set. (You will probably also need to set the individual tables to UTF-8). Then recreate the text.
If these pages are PHP text, then you need to set your editor to use UTF-8 as its standard character set. (Same if these came from some other client based editor rather than beign entered in a WEB page.)
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If these pages are PHP text, then you need to set your editor to use UTF-8 as its standard character set. (Same if these came from some other client based editor rather than beign entered in a WEB page.)