Answer:
I believe the first and last choice is correct.
~ hope I'm correct, if not I'm sorry~
Step-by-step explanation:
 
        
             
        
        
        
1280. 100% of students
X. 60% of student voting for Joan
X=1280•60/100
X=768
        
             
        
        
        
Answer:
6.5 minutes
Step-by-step explanation:
Divide T (total number of minutes) by M (total number of miles)
 
        
                    
             
        
        
        
Answer:
Scientists Could not agree on a standard