The answer to this question is A
The problem statement tells us ...
16 cm = 2.5 cm + (1/4)*(large gear diameter)
We can subtract 2.5 cm and multiply by 4 to find the large gear diameter.
13.5 cm = (1/4)*(large gear diameter)
54 cm = (large gear diameter)
The diameter of the larger gear is 54 cm.
Answer: the awnser a. the first dot
Step-by-step explanation:
