A person made 4 blankets. each blanket used 180 inches of ribbon for the border. How many yards of ribbon did the person use for all four blankets

Respuesta :

I think it's 720 because 180x4=720
180 inches X 4 blankets = 720 inches 

1 yard = 3 feet

1 foot = 12 inches

12 inches X 3 = 36 inches

720 inches / 36 = 20 yards