Step-by-step explanation:
(64y100)1/2
1/2×64y 1/2×100
32y50
6n+1 = 25
subtract 1 from each side
6n+1-1 = 25-1
6n = 24
divide each side by 6
6n/6 = 24/6
n =4
600 * .34 = 204 are in 8th grade
204 * 1/4 = 51 51 8th graders walk to school
D
Answer:
30%