The answer should be y=x-9 /3
I'm sorry if I'm wrong
Step-by-step explanation:
Answer:

Step-by-step explanation:
The number inside the square root symbol is the number you have to get when you multiply a certain number twice.
So
:
What multiplied by itself is 121?
Backwards equation:


Do not do the backwards method all the times, it does not work for all numbers.
Answer:
Option 1. Hope this helps! :).
Sincerely; Victoria
Step-by-step explanation:
20 + 20 + 30 + 15 + 40 = 125
125/5= 25
25-15 = 10
Absolute deviation for 15 is 10