1.They basically all did one big bug,not separate hugs with different bears.
        
             
        
        
        
Answer:
b
Step-by-step explanation:
 
        
                    
             
        
        
        
I believe 26 units is the correct answer because you basically gotta multiply top from bottom
        
             
        
        
        
#13 would be 100%. 
#15 would be $9.90. 
#17 would be 408.
#19 would be 27840.
#21 would be 26.
Sorry for the late reply.