Answer:
The answer is C
Sn=3(1-1/2^n)
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
It is given that the regression equation 

predicts an adult’s height (y) given the individual’s mother’s height (x1), his or her father’s height (x2), and whether the individual is male (x3 = 1) or female (x3 = 0). 
The coefficient of x1 = 0.32 represents the increase in height of the child due to one inch increase in mother.
Similarly coefficient of x2 = 0.42 represents the increase in height of the child due to one inch increase in father.
and coefficient of x3 = 5.31 represents the increase in height of the child due to being a male than a female.
 
        
             
        
        
        
Answer:
52.19612
Step-by-step explanation:
hope this helps