19 - 20. ) 128, 428, 928, _, _, _
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27 - 28. ) 3, 9, 27, _, _, _
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29 - 30. ) 6, 12, 18, 24, _, _, _
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27 - 28. ) 3, 9, 27, _, _, _
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29 - 30. ) 6, 12, 18, 24, _, _, _
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Answer:
19-29.)
27-28.) 3,9,27,81,243,729
29-30.)6,12,18,24,30,36,42