The firm's appropriate predetermined overhead rate is $6.41 per machine hour on basis of given figures.
A machine is something that was made by humans to simplify work. It is a device or invention that increases the impact of human labor. The device generates a mechanical benefit.
A machine is a tool that allows a tiny applied force to be multiplied in order to overcome a strong opposing force or to gain speed. Simple machines are often used to lift heavy loads with an ack or pulley, to ride a bicycle, or to cut with a pair of scissors.
To know more about Machines visit:
https://brainly.com/question/3135614
#SPJ4