Heya, I could really use some help with this question. I don't really get what it's asking.

The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2

Sole the equation 6n + 9 = -3n - 21 - 6 for n

With hw i put a image and it cleary enough for you to see now i need with math now