"Three to the power of two"
or
"Three raised to the second power"
or
"Three Squared"
X, y, z denote children's movies, western movies, and horror movies, respectively. The related system of equations is formed and solved.

Simplifying the system of equations, we have



The video store has 500 children's movies, 600 westerns and 900 horror movies.
Answer: -9 units
Step-by-step explanation:
-9 x 4 = -36
so therefore -36 divided by 4 = -9