A circular pool has a footpath around the circumference. The equation x2 + y2 = 2,500, with units in feet, models the outside edge of the pool. The equation x2 + y2 = 3,422.25, with units in feet, models the outside edge of the

footpath. What is the width of the footpath?

• 8.5 ft

• 17 ft

• 30 ft

• 58.5 ft