What is the first step in evaluating the expression shown below?

12÷(7.4−3.6)+8−2
a. subtract 7.4−3.6.
b. divide 12÷7.4.
c. add 3.6+8.
d. subtract 8−2.

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