A rectangular pasture has a fence around the perimeter. The length of the fence is 36x^9 feet and the width is 49x^9 feet. What is the area of the pasture?

The formula for the area of a rectangle is length multiplied by width. In this case, the length is 36x^9 feet and the width is 49x^9 feet, so the area of the pasture is (36x^9)(49x^9) = 1764x^18 square feet. Thus, the area of the pasture is 1764x^18 square feet.