Answer:
(1,1) (2,2) (1,2) (1,5) (4,4) (4,5) 
there are a lot more but those are some. 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
I think 29
I don't know if it's right
 
        
             
        
        
        
Answer:
b
Step-by-step explanation:
 
        
             
        
        
        
Answer:

Step-by-step explanation:
![\sqrt{5}  \times  \sqrt{10}  \\  =  \sqrt{5}  \times  \sqrt[]{5}  \times  \sqrt{2}  \\   = 5\sqrt{2}](https://tex.z-dn.net/?f=%20%5Csqrt%7B5%7D%20%20%5Ctimes%20%20%5Csqrt%7B10%7D%20%20%5C%5C%20%20%3D%20%20%5Csqrt%7B5%7D%20%20%5Ctimes%20%20%5Csqrt%5B%5D%7B5%7D%20%20%5Ctimes%20%20%5Csqrt%7B2%7D%20%20%5C%5C%20%20%20%3D%205%5Csqrt%7B2%7D%20)
<h3>Hope it is helpful....</h3>
 
        
                    
             
        
        
        
Hello there I hope you are having a great day :) 
<u>The Topic Shifting digits:</u>
Shifting digits - Putting a digit in a different place. For a example Take the number 358 you would exchange the number from the hundreds that would equal 838 this meaning that you what to make a bigger number than a small one. 
Examples:
1. 358 equal 838
2. 204 equal 402
3. 188 equal 881
You are just making them smaller to a greater number :)
Hopefully that helps you :)
  
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