Answer:
A
Step-by-step explanation:
The equation given is [tex]\frac{w}{x}=\frac{y}{z}[/tex]
In order to solve for z, we need to "cross multiply" and then solve:
[tex]\frac{w}{x}=\frac{y}{z}\\wz=xy\\z=\frac{xy}{w}[/tex]
The correct answer is A
The correct option is A) z=xy/w
See the attached figure