The perimeter around a dog's running space in 20x 2 28x 8 The length of the dog's running space is 10x 4 what is the width of the dog's running space Show why your answer is correct?

The question is utter nonsense! The perimeter of is a 1-dimensional measure so it cannot be 20x 2 28x 8. Similarly, the length of the running space is also a linear measure and so it cannot be 10x 4. There is, therefore, no way that the answer can be correct.