Answer:
Because a prism travels at the speed of light . :)
 
        
             
        
        
        
0.25=y. Need an explanation?
        
             
        
        
        
To put it simply, 12 degrees C is 12 away from 0 and -20 degrees C is 20 away from 0. Taking these two inputs and adding them together should give you 32. So 12 degrees C is 32 degrees warmer than -20 degrees C
 
        
                    
             
        
        
        
Answer:
x = - 9/a + 4b/a
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
 
        
             
        
        
        
The answer could be 67, 68, or 69. 
Hope that helps! c: