Hi lheiannie07,
We're asked for the GREATEST integer that is less than T. This question has a great 'design shortcut' built into it, so that you can use to avoid doing math entirely. Once we know that there is only one value for T, then we can stop working (since we would then be able to determine the greatest integer that is less than T).
1) T = 9/4
Fact 1 tells us the value of T (and there's only one value), so we can answer the given question.
Fact 1 is SUFFICIENT.
2) T = (-3/2)^2
Fact 2 tells us the value of T (and there's only one value), so we can answer the given question.
Fact 2 is SUFFICIENT.
Final Answer: D
GMAT assassins aren't born, they're made,
Rich