The correct answer is B. Most patients who have a poor dental experience also have post-extraction complications. This can be shown through the fact that of everyone who had a poor dental experience, 94% said they had post-extraction complication. 94% is obviously <em>most</em>. We can not confidently say that poor dental experiences cause post-extraction problems because we do not know how many people who had a normal or good experience also had problems.
        
                    
             
        
        
        
The answer is 6 cause 9-5 is 4 and 20/4 equal 5+1 equal 6
        
             
        
        
        
Answer:
32,432,400
Step-by-step explanation:
This you can use a permutation.
P(15,7)15x14x13x12x11x10x9
There are 32,432,400 ways to arrange it. 
 
        
                    
             
        
        
        
Answer:
84%
Step-by-step explanation:
84%
63 divided by 75 is 0.84. 0.84 is also 84% so the answer is 84%.