Answer: Yes. The data provides convincing evidence.
Step-by-step explanation:
In a random sample of 40 teenagers, 18 enjoy reading for fun. The percentage of teenagers who enjoy reading for fun will be:
= 18/40 × 100
= 45%
In a random sample of 40 adults, 12 enjoy reading for fun. The percentage of adults who enjoy will be:
= 12/40 × 100
= 30%
Therefore, the proportion of adults who enjoy reading for fun is less than that of teenagers. Therefore, the data provides convincing evidence. 
 
        
             
        
        
        
The fraction form 4/7 and the decimal form is 0.571428
        
                    
             
        
        
        
Answer:
150:120
Step-by-step explanation:
U add the 2 ratios 5+4=9
270/9=30
30*5=150
30*4=120
 
        
             
        
        
        
4/12 is less than 4/6
4/12 = 2/6
and 2/6 < 4/6
        
                    
             
        
        
        
V=pie r square h/3
Hope you get the picture!