-5
21-5=16
16-5=11
11-5=6
6-5=1
Answer:
1/2
Step-by-step explanation:
2-(-1)/9-3
= 3/6
=1/2
Observe the given figure.
Given: 
To prove: 
Statement
1. 
Reason: Given
2. 
Reason: Substitution
3.
are alternate interior angles.
Reason: Definition of alternate interior angles
4. 
Reason: If alternate interior angles are equal, then the lines are parallel.
the domain of the graph is where on the x axis there is a graph.
here the domain, x, is less than or equal to 6, isnce it goes down on the negative side
the arrow means the line goes on forever, so
x<=6
(x is less than or equal to 6)