Well, closed dots are used for greater than or equal to/less than or equal to and open dots for greater than/less than.
For 1-4, Use the correct dot and have the arrow face whichever side the inequality symbol is pointing to.
For 5-8, replace the variable with the number and see if it's true.
For 9 and 10, use the information from the first two sentences in this answer to solve them. Is the dot open or closed? Which way is the arrow pointed?
For 11 and 12, just use your imagination, so long as it would make sense for the problem; John has at least 60 sticks in his yard. Something like that!
For 13 and 14, use your imagination and prior knowledge again. I hope I could help!
