Respuesta :

markwilliammaioxx6nt
y=6 x=18 i think that is the answer is 54.
bloodrosa
x,y dimensions 
x=3y and perimeter equation is 2x+ 2y = 48
2*3y + 2y = 48
6y + 2y = 48
8y= 48

y= 6 and x = 18