One board, 3 hands and 3 river decisions (NL $100 6-Max)

[DoctorHandles]

Since a few people told me a value shove I made would almost never get called, I must conclude that I'm not shoving enough as a bluff to get folds. Take this for example....

1. I raise $4 from CO and a new player on the button calls.

2. Pot $9, flop [7h][2c]. I bet $8 button calls.

3. Pot $25, turn . I bet $20 button calls.

4. Pot $65, river . We each have $65 behind.

A) What's my play with [7d]?
B) What's my play with [9h]?
C) What's my play with [3c]?

[Zmej]