pulley
A pizza cutter is a type of wheel and axle simple machine. The wheel allows the cutter to roll smoothly over the pizza, while the axle provides the stability and support needed to apply pressure to cut through the crust and toppings.
lever
Yes. A paper cutter combines a lever and a wedge.
A pulley isn't a kind of simple machine, it is a simple machine
A train is not a simple machine.
IT's NOT A SIMPLE MACHINE!
its not a simple machine
Rope is not a simple machine on its own, it's a simple machine on a wheel and axle, then it's a pulley.
It is a simple lever.
a compound machine is a combination of simple machines
The blade is a wedge, as all blades are. It is also a wheel and axle, allowing it to rotate.
lever