If the end zones are included, a football field is 360 feet long and 160 feet wide. to get in shape, players are required to run the perimeter of the field several times. what is the distance of one trip around the football field?

Basically, they are asking you to find the perimeter of the Football field. To find the perimeter of a rectangle (the shape of the Football field), you have to do 2(length) + 2(width).
Since the length is 360 feet, we have to do 2 x 360, or 360 + 360. We get the number 720 from this.
Since the width is 160 feet, we have to do 2 x 160, or 160 + 160. We get the number 320 from this.
Now that we have those two numbers, we have to add them up. 720 + 320 = 1,040. So, the correct answer is 1,040 feet.