Which if the following statements is true? 30/100 > 3/5, 3/4> 3/5, 3/7> 3/5, 12/25> 3/5

One root of a third degree polynomial function f(x) is -5 + 2i

The statement that describes the number and nature of all roots for this function is:
f(x) has two complex roots and one real root. 

Two complex roots because whenever a complex number is a root of a polynomial with real coefficients, its complex conjugate is also a root of that polynomial. They come in pairs.