Question 349117
No,that's not it.
Length in terms of width would be,
{{{highlight(L=W+3)}}}
.
.
.
Perimeter in terms of width would be,
{{{P=2L+2W}}}
{{{P=2(W+3)+2W}}}
{{{P=2W+6+2W}}}
{{{highlight(P=4W+6)}}}