The correct answer to this is C
        
             
        
        
        
X-4y=28
8x+4y=8
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9x=36→x=4
4-4y=28→y=6
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y-5=x
4(y-5)-y=4
4y-20-y=4
3y=24
y=8
x8-5=3
        
             
        
        
        
Answer:
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Answer:
Step-by-step explanation:
Sslsl
 
        
             
        
        
        
Complete Question 
The complete question is shown on the first uploaded image 
Answer:
The null hypothesis is  
  The alternative hypothesis is  
Step-by-step explanation:
From the question we are told that 
         The number observations is  
          The  annual salary (in dollars) is  y 
           The  mean score on teaching evaluation is  x 
           The the relationship between the y and  x is 
                 
Where   is the mean of the equation so
 is the mean of the equation so 
   The null hypothesis is  
    The alternative hypothesis is  