Mock Exam Task 3

Hi,
i'm hoping someone can help me, i'm really struggling to get my head around this exam and in need of some help.
Task 3 which I've attached along with the answers i'm unsure how they got to any of these would someone please be able to explain?
Thanks
Sophie
i'm hoping someone can help me, i'm really struggling to get my head around this exam and in need of some help.
Task 3 which I've attached along with the answers i'm unsure how they got to any of these would someone please be able to explain?
Thanks
Sophie
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