Answer:
A poly nomial is an expression with more than one term.
Explanation:
Terms are separated by +'s and -'s. So, anything that has multiple terms and are polynomials(poly: the greek root for many.)
If an expression has a division, and the denominator(the number under) is a variable(x,y,z, etc.), then it is not a monomial. Thus it is a polynomial.
So to sort of answer your question if you're one of those people who just look to the bottom for answers to be lazy, I see 3 polynomials.