For Number 48. Your Number Will Be Letter B 
For Number 49. Your Number Will Be Letter B As Well 
        
             
        
        
        
Answer:
3x^2+6x+4 is the answer :D
 
        
                    
             
        
        
        
Answer: 280
Step-by-step explanation: 
100/30=3.(3)
3.(3)*84=280
 
        
                    
             
        
        
        
N=12
Since 5/6 and n is being multiplied, you have to divide the 5/6 from both sides. When you divide with a fraction, you have to find it’s reciprocal and multiply with it. So the 5/6 turns into 6/5
5/6 * 6/5 = 30/30 which is one. 
10 * 6/5 is 60/5 
60/5= 12