Final answer:
To find the green space in the park, subtract the area of the walking path from the total area of the park.
Step-by-step explanation:
The park is 300 yards by 500 yards. Since there is a 4 foot wide walking path around the entire perimeter, this means that each side of the park has 4 extra feet. So, the park is actually 308 yards by 508 yards after accounting for the walking path.
To find the green space, we need to subtract the area of the walking path from the total area of the park. The area of the park is 308 yards * 508 yards = 156,464 square yards. The area of the walking path is (308 yards + 508 yards) * 4 feet = 2,432 square feet.
Therefore, the green space in the park is 156,464 square yards - 2,432 square feet.