Answer:
There are 2 ways to answer each true-false question and there are six questions in total, if he redid the test twice and answered half true and half dflase then retook and flipped it, by answering what he answered true now false and what he asnwered false now true. But if teh test is blank and he is hust starting there would be 12 possible ways to answer. The test itself would have two possibilities for each question and six questions so 12 possible ways to answer it.