Answer:

Step-by-step explanation:

 
        
             
        
        
        
Answer:3
explation:square have 4 side 
                 perimetter of square=4l
                 so, 12/4=3
 
        
             
        
        
        
Answer:
10/3 hours
Step-by-step explanation:
12x=15x-10
12x-15x=15x-10-15x
-3x=-10
-3x/-3=-10/-3
x=10/3
 
        
                    
             
        
        
        
Answer:
 A. It will take 13 weeks until she gets the money nd she will have $50 left!
Step-by-step explanation:
Please mark brainliest! Have a nice day!
 
        
             
        
        
        
There should be a typo in the question: the correct formula would be

Let's compute 
 first. We have

If we intersect this set with X, we have

So, that would be the left hand side. For the right hand side, we have

And their union is again 