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Find the missing term or terms in each arithmetic sequence.
1) ..., 29, _, -31, ...
2) ..., -20, -, -40, ...
3) ..., 13
,, 7, ...
4) ..., -23, _, -3, ...
5) ..., 9., 3, ...
6) ..., 36,__, 56,
_...
30C AG
7) ..., -16.3 __, -20.5, ...
8) ..., -30, __, 30, ...
9) ..., -4/7 __, -68/21, ...
10) ..., 32 , __, __, __, 68, ...​