Mary makes pendants, of the same design, from small beads. The sequence of diagrams shows the pendants she makes. [Figures 25]

1. (a)Complete the table. Diagram number 1 2 3 4 5 Number of rows 3 5 7 9 Number of beads 4 9 16 25[1]
2. (b)(i)Find an expression, in terms of N, for the number of rows in Diagram N,[1]
3. (b)(ii)the number of beads in Diagram N.[1]
4. (c)Julia asks Mary to make her a pendant with 25 rows. How many beads are used to make this pendant?[2]

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