Plz help me out ASAP PLZZZ

Which of the following is the correct ratio for converting kilograms to grams

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

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2