It’s i, II, and iii I do believe.
The question is asking to calculate the book that Tony have in all if one eight of his book are 3 mystery books, base on the questions, and on my further calculation, I would say that the answer would be 24 books. I hope you are satisfied with my answer and feel free to ask for more if you have questions
36.91 is the answer 67.1x.55
1:30 because in 1 second it beats its wings 30 times
