Find the difference
(5x2 + 2x + 11) - (7 + 4x - 2x2)
a. 9 - 2x - 2x2
b. 3x2 - 2x + 4
c. 3x2 + 6x + 4
d.7x2 - 2x + 4

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