Answer:
6 years
their average age now is 15
so, in six years the average age will be 21
Step-by-step explanation:
If im wrong you have my regrets
 
        
             
        
        
        
Answer:
B.) 3.65, 3 2/3, 3.7
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
11320 is the answer .hope i help you
 
        
             
        
        
        
Explanation:
Starting with the first option, the square root of 12 and 8 isn’t a perfect square so it definitely can’t be reduced to 3/2.
It is the same for the second option as well.
Third option :
Root of 36 is 6
Root of 16 is 4
6/4 = 3/2 
Fourth option: 
Root of 81 is 9
Root of 36 is 6
9/6 = 3/2 
Answer:
Therefore, the third and fourth options are the correct choices. 
Hope this helped!