Which boards would you c-bet?

With $0.10/0.20 blinds and $20 effective stacks, you open the CO to $0.60 and the big blind calls. The big blind is 15/12 at FR or 21/18 at 6m over about 250 hands, and 3-bets about 7% from the big blind, folding his blinds 82% over that sample. He has folded to a c-bet 48%, raising c-bets 18% over the sample. He checks the flop. What is your c-betting range (with sizing) on the following boards, considering the pot is $1.30 with $19.40 behind?

1. Q 9 6
2. K 9 9
3. A T 9
4. T 8 5
5. 9 3 4
6. J 9 2
7. 7 3 3
8. 8 6 2
9. A 9 4
10. J 7 3