10. A 11. D 12. A (wasn’t too sure about question 12)
        
             
        
        
        
X= 130°
Step-by-step explanation:
From E, draw EF || AB || CD. 
Now, EF || CD and CE is the transversal.
So; <DCE + <CEF = 180° [co. int. <s] 
x° + <CEF = 180° 
<CEF = (180° – x°). 
Again, EF || AB and AE is the transversal. 
So; <BAE + <AEF = 180° 01 [co. int. <s ] 
105° + <AEC+ <CEF = 180° 
105° +25° + (180° – x°) = 180° 
 x° = 130°
I hope I helped you^_^
 
        
             
        
        
        
Answer:
45/10, 4 3/5, 19/4
Step-by-step explanation:
19/4 = 4.75
45/10 = 4.5
4 3/5 = 23/5 = 4.6
4.75 > 4.6 > 4.5
Best of Luck!
 
        
                    
             
        
        
        
We have the following general rule for exponents:

then, in this case we have the following:

therefore, the answer is 3