15
Nov
square root(negative 37)
Why are there always so many stupid easy math problems? Do you just want to see if I know how to do them or do you think I will answer them quickly enough for you to complete your math quiz? So I pasted your question into Google Images (what I do with all the totally worthless questions). So your answer is:

If you prefer a numerical answer then ask Google.com and you will get a nice numerical answer.