63% decrease. 
0.63•80=50.4kg
80kg-50.4kg=29.6kg
        
             
        
        
        
Answer:
2160
Step-by-step explanation:
Distance covered per day =540miles
Number of days travelled = 4 days
Therefore,the mil we s travelled altogether= 540×4= 2160
 
        
             
        
        
        
 2 inches : 6 feet is the same as 1 inch : 3 feet
It could also be written:
 1 inch : 36 inches
 1 foot : 36 feet
        
             
        
        
        
Answer:
A ; C ; D 
Step-by-step explanation:
Volume of a rectangular prism: 
V = l x w x h 
1) 5 x 4 x 3 = 60 (ok) 
2) 25 x 20 x 15. The result is > 60
3) 5 x 2 x 6 = 60 (ok) 
4) 4 x 1 x 15 = 60 (ok) 
5) 5 x 8 x 2 = 80