I need help... I understand the subject(or at least I am fond of it.), but I missed something in this question and I know not of what it is! If you could help it'd be very appreciated!
The answer options in my questions are:
6.4
5.2
3.6
3.0
I don't know what I did weong, please help if you know the answer for sure!

I need help I understand the subjector at least I am fond of it but I missed something in this question and I know not of what it is If you could help itd be ve class=