The linear equation representing the above said pair of points is "y=12x+9"
Step-by-step explanation:
The given set of points are  
x	Y
1	21
2	33
3	45
4	57
For finding the linear equation for the given sets of value
We must know the generic form of a linear equation is y=m*x + c
m= slope of the line where y= Δy/Δx  
Δy= change in y value
Δx= change in x value
Thus slope ”m” = 33-21/2-1 = 12
 we put slope “m” in the equation which becomes y=12x+c
Now we put any of the set value in the equation
33= 12*2+c ∴ c=9
Hence required linear equation is y=12x+9
 
        
             
        
        
        
Answer:
(12,-6)
Step-by-step explanation:
I hope this helps and have a good day.
 
        
             
        
        
        
How much is the pizza? it depends on the price
        
             
        
        
        
Answer:
The first one
Step-by-step explanation:
 
        
                    
             
        
        
        
<h3>
Answer:  95 degrees</h3>
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Explanation:
I recommend drawing it out to see what's going on. See the drawing below.
In the diagram, both angles are in the northeast corner of their four-corner configurations. They are both congruent corresponding angles. So that's why the second angle is also 95 degrees. 
Side note: we could replace "northeast" with any of the other directions on the compass (such as southwest). All that matters is that they are in the same configuration.