Question 832050
It can be classified as a real number ( since it is not imaginary number, which you have to use "i" to represent), rational number (since it can be written as a fraction, 3/1), and integer(since it is just a number and nothing follows, no decimal), It's not a whole number because it's not positive. It's also not an irrational number since it doesn't have infinite decimal following after. 
TA-DAH