The slopes of WX and YW are opposite reciprocals.
        
                    
             
        
        
        
If you add 21,42,50, and 205 you will get your answer
        
                    
             
        
        
        
What you need to do is divide the fraction then multiply by the reciprocal of that fraction
So it’ll be 9-3x3+1
Then you multiply the numbers 
9-9+1
Eliminate both 9’s, therefore the answer will be 1
        
                    
             
        
        
        
Answer:
there are 30
Step-by-step explanation:
10 in each bag
 
        
             
        
        
        
Answer:
 Add up all the numbers, then divide by how many numbers there are
Step-by-step explanation: