[![enter image description here][1]][1]


  [1]: https://i.sstatic.net/kfFBx.png

First, it's 3/4: a crotchet note counts for 1 beat, a quaver counts for 1/2 beat and a minim counts for 2 beats; A bar contains 3 beats in total.

Second, there are 3 voices in this bar: 2 voices for bass clef, 1 voice for treble.

third, how to play with your right and left hand: 

1. The right-hand plays a crotchet(d2) counts for 1 beat. 
   The left-hand "plays" the crotchet rest and half of the minim(b) simultaneously count for 1 beat. 
2. The right-hand plays 2 quaver notes(g1 and f1) count for 1 beat. 
   The left-hand plays half of the minim(d1) and the left half minim note(b) simultaneously count for 1 beat. 
3.  The right-hand plays the last crotchet note(g1) for 1 beat, and the left-hand plays the left half minim(d1) and the crotchet(b).