Answer:
7.45
Step-by-step explanation:
20 - 3.05 + (-9.5)
16.95 + (-9.5) 
16.95 - 9.5
7.45
 
        
                    
             
        
        
        
Answer:
This isn't the best worded question but from what I understand a larger sample size decreases the margin of error. If he would like a more accurate answer a larger sample size of the viewers will give more accurate answers.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
4/12 simplified to 1/3 of rolling 2 times. 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
508.4
Step-by-step explanation:
This is on delta math