Answer:
Yes they are similar because they are both right angles but the one on the right is bigger than the one on the left.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
a
Step-by-step explanation:
 
        
             
        
        
        
Answer:
1 6/8
Step-by-step explanation:
add 1/8 to 5/8 by adding just the numerators
1 + 5 = 6
now you have 6/8. add the 1 and you have 1 6/8
hope this helped, have a good day :)
 
        
                    
             
        
        
        
If the question is supposed to be 

Now multiply both sides by 3 to get 3(-21)=-63=e