see graph below
Explanation:
3) speed limit = 60 miles per hour
limit indicates the speed cannot exceed 60 but it can be less than 60
Writing in mathematical term: ≤ 60
Graphing on a number line:
4) Age = at least 16 years old
It means the age can be more than 16 years old but not less than it
Writing mathematicall term: ≥ 16
