Answer:
Function A
Step-by-step explanation:
If I did this right. Sorry if I am wrong but function A is correct. Function A is a rate of 12, Funtion B is in increase of about 10, and Funtion C is 1.
Answer: machine 1: 3/5 machine 2: 3/4
machine 1 is working at a faster rate
wait
Answer is 4/1 or 8/2
Hope it helps.......