Answer:
where is the graph
Step-by-step explanation:
 
        
             
        
        
        
The sum of n terms is given from the first term and the common ratio by

For your given values of a1=-11, r=-4, n=8, the sum of 8 terms is

 
        
             
        
        
        
Answer
$36
Step-by-step explanation:
You multiply 0.8 by 20 since 0.8 is also 80% and you get 16. Since you want 80% more than 20 you add together to get $36. Hope it helped!
 
        
                    
             
        
        
        
12x is the correct answer 
        
             
        
        
        
To find the biggest or close number say 70 is close to 75 or 70 the answer would be 70 I think but not sure