23 is the right answer to number of students who took atleast one

CRR was Cash Reserve Req, other option that was close enough to confuse was credit review something

As for toys question concerned I also did 42 x 3.5 but i think it was a trick question. There is no such thing is .5 toy being made so we had to multiply 42 x 3 to get the answer so if 126 was an option given then that would have been right.