Because the SI units are based on the power of 10 but the imperial units are not
The third one, 40-45 because the difference of the rest are 4, while that one is 5.
The first answer
-40y3/x5
Answer: I would say the third one
Step-by-step explanation: I hope this helps if it is wrong i am so sorry I hope you have a great day of night stay safe :)