Answer:
33
Step-by-step explanation:
 since the whole thing is a right angle=90 you just subtract it from 57 and that's 33
 
        
                    
             
        
        
        
Answer:
What percentage of gold is in the new alloy after the recasting? 4
Step-by-step explanation:
(80/5)*(1/5)/80=0.04
 
        
             
        
        
        
Answer:
Granite is a one of the most common igneous rock. Its used in building materials and making statues.
Step-by-step explanation:
 
        
                    
             
        
        
        
     1km                 x
------------- =  ------------
1.12 mins      60 mins
1.12 x = 60
1.12x/ 1.12 = 60/ 1.12
x = (approximately) 53.57 km