Answer:
x = 103
Step-by-step explanation:
In my opinion, because x and 77 are the supplementary angles, so 180-77 = x or x+77=180. The answer should be 103......even though it's not in the options (I'm sorry). 
 
        
                    
             
        
        
        
Answer:
C
Step-by-step explanation:
The line of best fit is a linear function that is closest to all the points and shows the trend in the data. Since the data is going up ultimately, the slope of the line will be positive. Only B and C are options. 
To find the best fit, draw a line through the center of the most points. This line will have as its y-intercept a value around 12 and a gentle slope. This means the answer choice is C.
 
        
             
        
        
        
The answer is 0 unless I did the math wrong
If so someone correct me. Other than that, hope this helped!
 
        
                    
             
        
        
        
Answer:
Where is the diagram though..
Step-by-step explanation:
 
        
             
        
        
        
Answer:
yes -156 is correct
Step-by-step explanation: