Freya, a post office clerk, uses 2 yards, 1 foot, 7 inches of twine to wrap each damaged carton she repairs.
So,
2 yards 1 feet 7 inches means 2 yards 1 feet and 0.5833 feet
Means 2 yards feet
2 yards 1.5833 feet
So,
Means 2 yards and 0.528 yards = 2.528 yards
It means for 1 carton, she needs twine = 2.528 yards
So, for 17 carton, she needs twine =
It means she needs 42.976 yards twine.
Hope it will help :)