Answer:
sqrt(x) where x is between 81 and 100; example sqrt(88). See explanation for more examples.
Explanation:
9=sqrt(81) and 10=sqrt(100)...
So the square root(x) is between 9 and 10 if x is between 81 and 100.
Here are examples:
sqrt(82)
sqrt(83)
sqrt(85.6)
sqrt(92)
sqrt(94)
sqrt(97)
sqrt(99)
sqrt(99.6)
So again the answer is just anything in form sqrt(x) where x is between 81 and 100. The reasoning is because sqrt(81)=9 and sqrt(100)=10 which puts the values we stated between those values.