Answer:
Ratio of present ages of Sonal and Manoj = 7:5
Let us consider the ages of Sonal and Manoj to be 7x yrs. and 5x yrs. respectively.
After 10 years, ratio of their ages = 9:7
A/q,  7x+10/5x+10 = 9/7
or     9 (5x+10) = 7 (7x+10)
or     45x + 90 = 49x + 70
or      49x - 45x = 90 - 70 
or      4x = 20
or       x  =  20/4  =  5 .
Therefore, present age of Sonal = 7x yrs. = 7 x 5 yrs. = 35 yrs.
                     present age of Manoj = 5x yrs. = 5 x 5 yrs. = 25 yrs.              
Step-by-step explanation:
You helped me before so thank you
 
        
             
        
        
        
Answer:
look at the picture i sent......
 
        
                    
             
        
        
        
The answer is:
(v-1)(v+1)(v^2+1)
        
                    
             
        
        
        
Answer:
1.29 x 7
Step-by-step explanation:
He can download 7 apps.
 
        
             
        
        
        
Answer:
i think the 2nd one
Step-by-step explanation: