X = 12 , just solved it right now :)
        
             
        
        
        
Are you sure it is correct because for each one your just doubling the number. 2+2=4. 4+4=8. 8+8=16. I think its suppose to be 16+16= 32 and so on, but I may be wrong
        
             
        
        
        
457 irk sorry I don’t do this
        
                    
             
        
        
        
Answer:
1
Step-by-step explanation:
I was thinking about it and I prepared my paper and pen and started typing the problem but then I realized this... 
<u>8</u><u>+</u><u> </u> and <u>8</u><u>-</u>
Then I was like 
OK.... 
 
        
                    
             
        
        
        
Answer:
6. it is a square because all of the outer sides are equal
3. perpendicular because the slopes are reciprocals of eachother and the lines would form 90 degree angles