Answer:
Step-by-step explanation:
40% is the correct answer 
 
        
                    
             
        
        
        
241 + 800 = 1041 
247 + 794 = 1041
        
                    
             
        
        
        
Answer:
I do
Step-by-step explanation:
not know
 
        
             
        
        
        
Answer:
2.8a²+0.9a - 1.2
Step-by-step explanation:
Given the expression 0.3(3a-4)-0.05(8a)(-7a)
Expand using the distributive law
0.3(3a-4)-0.05(8a)(-7a)
0.3(3a)-0.3(4)-0.05(8a)(-7a)
0.9a-1.2 - 0.05(8a)(-7a)
0.9a - 1.2 + 2.8a²
Rearrange
2.8a²+0.9a - 1.2
Hence the required expression is 2.8a²+0.9a - 1.2