Convert 9 $\frac { \text { in. } } { s } \text { to } \frac { \mathrm { ft } } { \min }$

Multiple Choice

Convert 9 $\frac { \text { in. } } { s } \text { to } \frac { \mathrm { ft } } { \min }$

A) 6,480
B) 540
C) 45
D) 108
E) none of the above