Answer:
-2
Step-by-step explanation:
A negative times a negative is a positive
 
        
                    
             
        
        
        
Answer: We will use the QUADRATIC FORMULA. 
x=7.6659375
Step-by-step explanation:
Use the Quadratic formula
a=-16,b=113,c=74
And then use the quadratic formula and you get x=7.6659375
 
        
             
        
        
        
So basically you have to see how the person is built but in average it will took like 12minutes
        
             
        
        
        
Answer:
n = 4
Step-by-step explanation:
36 = 13n - 4n
<=> 36 = (13-4).n
<=> 36 = 9n
<=> n = 36 / 9
<=> n = 4
 
        
                    
             
        
        
        
Answer: 3
Step-by-step explanation:
11- 2x2x2 since its 2 to the power of 3 which will give you 8 and than you basically just subtract 11- 8=3