Trata 5-29+-5=21 porque ya as tenido este
        
             
        
        
        
I think B is the answer. I am not sure
        
                    
             
        
        
        
Answer:
Option C
Step-by-step explanation:
Exteriore angle property: Exterior angle equals the sum of opposite interior angles.
∠I = 77° + 56°
     = 133°
 
        
             
        
        
        
X=3
Y=-8
Z= 1 
hope that helps
        
             
        
        
        
Answer:
64%
Step-by-step explanation:
The percentage of variation in the dependent variable explained by the estimated regression is calculated with the coefficient of correlation as follows:
First, square the coefficient of correlation: 0.8^2 = 0.64
And then, multiply this result by 100, so that, it is expressed as a percentage: 0.64*100 = 64%