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Assessment
Solve the following questions.
6. Given the sequence 3, 1, -1, -3, ..., find a12.
7. Find the 9th term of the arithmetic sequence 12, 24, 36, ...
8. If a₁ = -17 and d = 4, find a22 of the arithmetic sequence.
9. Find the 16th term of the arithmetic sequence whose first term is 6
and the common difference is 0.25.
10. Which term is 27 in the arithmetic sequence 54, 51, 48, ...?