There are four simple machines used to make the compound machine known as the lawn mower. These simple machines are the wheel and axle, the screw, the lever, and the wedge.
A lever.
wheel and axle
Rims and tires
lever and pulley
A compound machine.
wheel and axle
At least 300
a lever and a well with a bucket.
Complex machines are made out of multiple simple machines like axels, levers and pulleys make up a catapult on wheels.
Compound machines are things that are made up of 1 or more simple machines. A screw isn't made up of any simple machines unless you count the screw as a simple machine.
The eyepiece and the stage and two knobs( one for focus and one for close up