Answer:
27.8% I think
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
y = -3
Step-by-step explanation:
As per the condition given 
8 + y = 5
y = 5 - 8 = -3
 
        
             
        
        
        
Answer:
A. 3x^2+7x^2+2×3x ×7-84x = 3x^2+7x^2-2×3x×7
9x^2+49x^2+42x-84 x= 9x^2+49x^2-42x
9x^2+49x^2-42 = 9x^2+49 x^2-42x
verified
B. 
 
        
                    
             
        
        
        
5 37/100
5 is the whole part and you have 37 hundredths