Answer:
Step-by-step explanation:
 
        
                    
             
        
        
        
Given:
The area model for  .
.
To find:
The value of  and the missing values in the area model.
 and the missing values in the area model.
Solution:
2.1 can be written as 2 and 0.1 on the left side of the area model.
3.2 can be written as 3 and 0.2 on the top of area model.
Area of the four parts of the area model are:




The complete area model is shown below.
After adding all areas of the area model, we get

Therefore, the value of  is 6.72 and the missing values of the area model are 0.3 and 0.02 respectively.
 is 6.72 and the missing values of the area model are 0.3 and 0.02 respectively.
 
        
             
        
        
        
Which one 11 or 13. it be easier to know
        
                    
             
        
        
        
If he sang the same number of songs each month, he sang 80 songs per month. 
960/12 (months) = 80 (songs per month)