I know that the first one is the (sum) of a number x and 8.1 but im not sure about the rest im sorry
        
             
        
        
        
No. 49 is not a multiple of 14. The only number that can do the job is 3.5 .
        
                    
             
        
        
        
Answer:
A = P(1 + r)t i think
Step-by-step explanation:
 
        
             
        
        
        
11 and 12
since 11*11 equals 121 and 12* 12 is 144