A  B 
Simplify,  Answer, 
Simplify,  Answer, 
Simplify,  Answer, 
Simplify,  Answer, 
Simplify,  Answer, 
Simplify,  Answer, 
Simplify,  Answer, 
Simplify,  Answer, 
Simplify,  Answer, 
Simplify,  Answer, 
Simplify,  Answer, 
Simplify,  Answer, 
Simplify,  Answer, 
Simplify,  Answer, 
