Answer:
7. open & shade right
4. ∞>x>=11
5. 10.5<x<∞
9. closed & shade right
Step-by-step explanation:
K < 8= open circle on 8 shade left
d < 4 = open circle on 4 going to the left
9. closed circle on 13.5 going to the right
Im not sure about the others but h oped this helped!
