Question: 10. How many terms are the in the sequence -3, 2, 7, ..., 152? (3 marks) 11. An arithmetic sequence has 121 as its 7th

10. How many terms are the in the sequence -3, 2, 7, ..., 152? (3 marks) 11. An arithmetic sequence has 121 as its 7th term, and 193 as its 15th term. Find the 30th term. (3 marks) 12. The general formula for a sequence is tn = 5(-2)"-1. Find the 4th term. (2 marks)

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