what type of simple machine is a leaf rake?

Answer 1

it is a lever.. the handle works like a lever, translating a small motion by your bottom hand into a loarger swing of the rake head.. the pivot point is your top hand..

Answer 2

I believe it is a 3rd class lever system where your left hand is the fulcrum, your right hand is the force (assuming that you're right handed), and the ground is the mass.
By the way, you're asking this question in the wrong category;
try re-asking it in "Physics".