Question

How do i solve this?

Answer 1

3rd option

Explanation:

When you see open circle it shows that it excludes 7 and 13, so you would use "(" and/or ")"

If you see a colored in circle, that means it includes those number and you would use "[" and/or "]"

Answer 2

C). (7,13)

Explanation:

When you see an open circle on the number line, this means the number the circle is above is EXCLUDED in the interval.

When a number is excluded, you use a parenthesis ( )

A filled-in circle on the graph means the number is INCLUDED

When a number is included, you use a bracket [ ]

On the number line, there is an open circle above the 7 and the 13

This means 7 and 13 are not included in the interval, so there will be a parenthesis on BOTH SIDES.

Final Answer: ( 7, 13 )