It's 3/4, simple enough just do delta y over delta x
 
        
                    
             
        
        
        
Answer:
about 10 days 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
150*2/3=100
take school size then multiply it by the ratio to get the amount of student who prefer such toothpaste.
Step-by-step explanation: