Beth lost her leg to a mast cell tumor. You can read more about this HERE

HA! Yes if Beth is sleeping in the wrong position she will snore. HOWEVER she likes her donut bed where she sleeps with her chin up on the bolster. This position seems helps her breathing in turn causing her not to snore as much.

I am not sure... As a rescue they only estimate her age. She is said to be about 8 years old.