by Ben Ku Fri Jul 31, 2009 1:57 am
Hi Maxine,
Usually for materials related to the Online Lab or Classes, you should ask an instructor during office hours, so your question can be resolved more quickly. Let me quickly address this one. For #222, you wouldn't use FIZ because it deals with square roots, so the rephrased question would be "is x a perfect square?" In other words, knowing whether x is a fraction or integer will not help us to eliminate a statement.
Hope that helps.
Ben Ku
Instructor
ManhattanGMAT