Question: trying to show my students a level 4 work. for following questions 3) A family of six line up for a photo. How many ways

trying to show my students a level 4 work. for following questions

3) A family of six line up for a photo. How many ways 6) How many permutations of the word SCHOOL does can this be done if the father is on the far left, the not start with O? mother is on the far right and the twins (Jack and Alex) are side by side? Part B: Communication (12 marks, 2 marks each) 7a) Express 2x Cy-1 + 2xCy as a single term from Pascal's 10)How many paths are there from A to B if you can Triangle in the form ,Cr only move right and down? A 7b) Express actsCey's as a sum of two terms, each in the form ,Cr B

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