Question 394050
so you have a lot to work with here
P = 44
Perimeter in general equals lenght * width
L = 6 + 3W
W = W

so just make 1 big equation by adding all 4 sides

8W + 12 = 44
8W = 32 
W = 4

now that you have the width
find the length by plugging it in to the original L equation

L = 6 + 3w
L = 6 + 3(4)
L = 6 + 12
L = 18

So the answer would be

L = 18
W = 4