A rectangular field is seven times as long as it is wide. If the perimeter of the field is $800$ feet, what are the dimensions of the field? A$)$ Write an equation you can use to answer the given question. Let w be the width of the field. Do not solve the equation yet. The equation is $($Make sure you use the correct variable.$)$ B$)$ Use your equation to find the dimensions of the field. The width of the field is Correct feet. The length of the field is Correct feet.