The Width of a Rectangle Is 18 Inches Less Than $\frac { 1 } { 8 }$

Multiple Choice

The width of a rectangle is 18 inches less than $\frac { 1 } { 8 }$ of its length. If the perimeter of the rectangle 342 inches, find the area of the rectangle.

A) $504 \mathrm { in } ^ { 2 }$
B) $168 \text { in } ^ { 2 }$
C) $252 \mathrm { in } ^ { 2 }$
D) $3 \text { in } ^ { 2 }$