hi --
i see that this thread was your first attempt at posting here. however, it violates our forum rules, so i've had to delete it.
the forum rules are posted here (the first thread in the folder):
read-before-you-post-gmatprep-verbal-guidelines-t2720.htmlin those rules, it's noted that you should post exactly
one problem in each thread, and you should also ask specific questions about the problem. (if there is more than one problem in the same thread -- especially if they are different types of problems, like the 2 sc's and 1 cr that you posted here -- then the thread is confusing and of little use to fellow students.)
also, please
search the forum before you post; almost 100% of gmat prep sc's are already posted here, and a majority of gmat prep cr's are already here as well.