OPTION D. No 
as there is no common difference
 
        
             
        
        
        
Answer:
Doctor 1's average is 12 while doctor 2 is 16
Step-by-step explanation:
doctor 1:
20+22+29+15=17=18+1+1+2+3+7+9=144/12=12
doctor 2: 35+20+20+22+23+26+13+17+2+2+3+9=192/12=16
 
        
                    
             
        
        
        
The graph which best represents a function with a domain of all real numbers less than or equal to 6 is; Choice A as represented in the attached image.
<h3>Which graph represents the given domain?</h3>
According to the task content;
- The domain of the graph which means the set of possible values of x is less than or equal to 6.
On this note, it follows that the graph which is characterized by the given domain is as attached.
Read more on graphs;
brainly.com/question/14323743
#SPJ1
 
        
             
        
        
        
y and z are the same so the answer is 90.
 
        
                    
             
        
        
        
Answer:
8.6
Step-by-step explanation: