Answer:
what do you need help with 
 
        
                    
             
        
        
        
Answer: I believe it would be 8 people who slept atleast 8 hours.
Step-by-step explanation:
 
        
                    
             
        
        
        
Top right
this is because, when dividing an inequality by a negative number, you must flip the inequality sign
-3x < 21
x > -7
        
                    
             
        
        
        
Answer:
3 is similar, and 4 is not.
Step-by-step explanation:
3 is similar as all the ratios turn out to be 4/1, and 4 is not similar as 6/8 does not equal 10/14.