Write the word YES if the sequence iz arithmetic and NO if not. Give the common difference (d) of the item that you think is an arithmetic sequence. EXAMPLE: Given: 7, 20, 33, 46,... Answer: YES, d = 13

Write the word YES if the sequence iz arithmetic and NO if not. Give the common difference (d) of the item that you think is an arithmetic sequence.

EXAMPLE:
Given: 7, 20, 33, 46,...
Answer: YES, d = 13

1. 3, 6, 9, 12, 15,...
2. 1, 2, 3, 5, 8,...
3. -1, 1, -1, 1, -1,...
4. 16, 12, 8, 4, 0,...
5. -2, -7, -12, -17, -22,...
6. 2, 4, 8, 16, 32,...

$7.(1)/(2), \: (1)/(3), \: (1)/(4), \: (1)/(5), \: (1)/(6),...$
8. -20, -13, -7, 1, 8,...
9. 99, 88, 77, 66, 55,...
10. 1, \frac{5}{2}, 4, \frac{11}{2}, 7,...

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