You have to find out what 15% of $78 dollars is.  If you have to do this in your head and not on a calculator you can find 10%, then cut that number in 1/2 and add it to the answer.  So 10% of $78 is 7.8 so $7.80.  You can divide 7.80 by 2 and get 3.9 and add that to 7.8 which is 11.70.  So 15% of $78 is $11.70. 
        
                    
             
        
        
        
Answer:
B. LUV
Step-by-step explanation:
its in the order of the alphabet 12-21-22
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
It is (3,-1).