The first table because the y side is increasing at the same rate. the rate is 4
        
                    
             
        
        
        
<em>Answer is x + 12</em>
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<h2>
Explanation:</h2>
Hello! Recall that you have to write clear questions in order to get exact answers. So I'll help you assuming that the two expressions are the following:
First expression:

Second expression:

So the operation we need to perform is:

Recall some rules:

Hence:

<h2>Learn more:</h2>
Simplify: brainly.com/question/1291365
#LearnWithBrainly
 
        
             
        
        
        
The angle of the triangle would be 72