
1. Does the Omega juicer cost less than the Champion juicer? Create an XPath expression
   to answer this question. Use only value comparison operators.

   number(//juicer[name eq 'Omega Juicer']/cost) lt number(//juicer[name eq 'Champion Juicer']/cost)


2. Is the juicer that has the retailer http://www.discountjuicers.com/greencomplete.html
   the same as the juicer with cost 459.99? Create an XPath expression to answer this
   question. Use only value comparison operators.

   //juicer[retailer eq 'http://www.discountjuicers.com/greencomplete.html'] is //juicer[number(cost) eq 459.99] 


3. Does the Omega juicer come before the Champion juicer in the XML document? Create an XPath
   expression to answer this question.

   //juicer[name eq 'Omega Juicer'] &lt;&lt; //juicer[name eq 'Champion Juicer']