Question 1017682
L = W+20
2(W+20)+2W = 80
2W+40+2W = 80
4W = 40
W = 10
and
2(W+20)+2W = 100
4W+40 = 100
4W = 60
W = 15
so the possible values fall between a width of 10 and a width of 15
J