I’m not sure...but I think
x+y=5
If x =15
Then 15+y=5
Y= 10
The 2nd robot can do the task in 10min
If the machine makes 5 buttons at a time,and each doll gets 5 buttons then one doll is the answer
9-5=4 Therefore f=4
Hope this helps
Answer:
y < 2x -3
Step-by-step explanation:
