Question

The width of a rectangle is 12 units. Can the perimeter x of the rectangle can be 60 units when its length y is 18 units?

No, the rectangle cannot have x = 60 and y = 18 because x + y is less than 60
No, the rectangle cannot have x = 60 and y = 18 because x + y is less than 24
Yes, the rectangle can have x = 60 and y = 18 because x = 12 + 2y
Yes, the rectangle can have x = 60 and y = 18 because x = 24 + 2y

Answer 1

@perl @Zarkon @dan815

Answer 2

@wio