Answer:
a)64
b)96
Step-by-step explanation:
For this we calculate the number of rows, 32, as 2+3 is 5, and 160/5 is 32. Then we know that there are 32 rows, and in each row are 2 left seats and 3 right seats, so we multiply 32 by both numbers for the answers.  
 
        
                    
             
        
        
        
It means it is asking for a large number so it can represent more of the population because the larger the number the more percent of population so the answer would be A
 
        
                    
             
        
        
        
the angle measures in the regular polygon is B)140