Yes, you're right, it's C-7/F. You can think of it as an F9sus4 since it's being used as a dominant chord in the key, which is Bb major. The last bar shows a repeat sign, which means you play Bb major again.
How To Play The Chords
Here's how you can play them.
The configuration of the chord notes don't really matter as long as F is the lowest note in your LH (if you're playing solo piano, otherwise a bass player would take that note). Here's an example, when reading left to right, the notes ascend.
RH = Bb F Bb
LH = FD
Here's a potential voicing for C-7/F:
RH = C G Bb
LH = F Eb
Notice how the notes from C-7 (CEbGBb) are spread out between the hands? F is the lowest note in the LH.
Hope this helps. If you need more clarification just ask.