What is 9+9n=9 show work please

Abcd is a parallelogram. the diagram is not drawn to scale. if m

Pls! does anybody know a shortcut for answering these types of questions in the future?

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