Answer:
–9 < x – 4 < 9
Step-by-step explanation:
-6h²+h is the answer
-2/7
2x+7y=14
7y=-2x+14
divide by 7
y=-2/7 x+2
200
2000 girls :1000 boys
2000 +1000 =3000
20% of 3000 = 600
I girl : 2 boys
1+2=3
600÷3 = 200
200 boys wore glasses