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Arithmetic Sequences

Write the formula for the nth term of the sequence, then find the 20th term of the sequence.

General Questions


1,6,11...
1. 





12,6,0...
2. 





101,108,115...
3. 





-10,-5,0...
4. 





1000,800,600...
5. 





3.2,4.0,4.8
6. 





7. 





8. 





7.05,7.21,7.37...
9. 





10. 








C Adams

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