Answer:
70
Step-by-step explanation:
 
        
             
        
        
        
The range of the data is C. 160 because the biggest number, 280, subtracted by the smallest number, 120, is equal to 160.
        
                    
             
        
        
        
Answer:
What are the following?
Step-by-step explanation:
 
        
                    
             
        
        
        
2/3 of 30 9/10 = (30*10 + 9)/10 = 309/10 kilograms of glass is blue or there are:
(2/3)(309/10) = (2*309)/(3*10) = (2*103)/10 = 206/10 = 10.6 kg of blue glass.