Determine the Constant of Variation for the Stated Condition $\mathrm { y }$

Multiple Choice

Determine the constant of variation for the stated condition.
- $\mathrm { y }$ varies directly as $\mathrm { z }$ and $\mathrm { y } = 180$ when $\mathrm { z } = 12$ . Find $\mathrm { y }$ when $\mathrm { z } = 13$ .

A) 195
B) 169
C) 225
D) 144