9c1 - Set 28th Jan, in for 4th Feb

For the the following sequences, i) find the nth term, ii) use it to find the 100th term and iii) say whether the number 50 will appear in the sequence.

1) 2, 6, 10, 14...

2) 5, 8, 11, 14, 17...

3) 4, 10, 16, 22...

4) 7, 7, 7, 7, 7...

5) 1, 10, 19, 28...

6) -5, -10, -15, -20...