Hey there mate!
So, when doing this kind of notation (scientific notation), this is pretty much like braking down the number,and trying to make it more simple.

I hope this helps you! :)
It would be the square root of 85 which is 9.2
Answer:
The first one
"Only Lillie is correct" that's the right answer.
Step-by-step explanation:
64^2/3 = 16
I’m pretty sure A is true <3
Hello there (I can do this one, it's quick enough)
The correct answer is 24 inches
There are 8 short sides, so you would do 1.5 times 8, to get 12 inches
There are 4 long sides, so you would do 3 times 4, to get 12 inches
12 plus 12 = 24 inches
I hope this helped