# What is the degree of 9xy^3z^6? (second problem) 3x^3 - 2x^2y^2 + y^2?

The degree of a monomial is how many variables are in it. In $9 x {y}^{3} {z}^{6}$, there are actually 10. This is actually:
$9 \times x \times y \times y \times y \times z \times z \times z \times z \times z \times z$