Question

what type of machine is a ramp for wheelchairs?
o simple machine
o compound machine
o mechanical machine
o complex machine

Explanation:

A wheelchair ramp is a type of inclined plane. Inclined planes are one of the six classic simple machines. Simple machines have few or no moving parts and are used to make work easier. A compound machine is made up of two or more simple machines. A mechanical machine is a very broad term and not specific here. A complex machine is also a broad and not - specific term in this context. Since a wheelchair ramp is an inclined plane (a simple machine), it fits the definition of a simple machine.

Answer:

simple machine