1 cm            3 cm
---------   =  ---------
3 in               x inches
The ratio has to stay in the same order  cm on top, inches on the bottom
Choice C
 
        
             
        
        
        
Answer:
12 hours 
Step-by-step explanation:
so what you do is take your $180 money amount and then divide it by your 15 or 12 dollar money amount and you should get your answer also your "answer" for the things you gave us is 
15 x + 10 y = 180
 
        
             
        
        
        
Answer:
Slope is Zero 0 
Step-by-step explanation:
this is because the line is horizontal and therefore has no slope