Question 1163378
{{{ 40 < n^2 < 200 }}} <br>

You can guess the solutions pretty easily:

{{{5^2 = 25}}} not a solution
{{{6^2 = 36}}} not a solution
{{{7^2 = 49}}} is a solution
{{{8^2 = 64}}} is a solution
...

etc. 
Keep increasing the integer value until its square is 200 or higher.  <br>

Keep in mind the "integers" include the addititive inverses (negative numbers) and {{{ n^2 > 0 }}} for n<0.  Thus, -7, -8, etc. will also be in the set of solutions.