Bracelet
There are 2 bracelets and she possibly picks three. :)
If I am understanding the question, and assuming the living room is a rectangle, then the border should be 80 ft
First you need to figure out the slope:
y2-y1/x2-x1=(1+5)/(-5-7)=-1/2
y+5=-1/2(x-7)
y=-1/2x-3/2
