Answer: 3rd one
Rearrange the original equation so it fits the model of : ax^2+bx+c=0 
Then use the quadratic formula to find all possible answers.
        
             
        
        
        
Answer:
ertyui
Step-by-step explanation:
 
        
             
        
        
        
Answer:
h=A-2πr2/2πr
Step-by-step explanation:
 
        
             
        
        
        
Answer:
$35.2
Step-by-step explanation:
% saved = 25%
Money saved = $8.80
Let x be the bill before the coupon discount.
25/100 × x = 8.80
x = $35.2
 
        
             
        
        
            
            
                How to you write the number 5,000,000,000,000,000,000,000,000,000,000 
                tresset_1 [31]             
         
        
The way you wrote it is how you write it unless you want to do scientific notation then the answer would be, 5x10^30 because for it to be in scientific notation it has to be between 10 and 1 so I moved the decimal spot over 30 to get it into scientific notation. Hope this helps out.