147 is the circumference.
since the directions say to use 3 as pi, and we know that the radius is 7, we can say that 
3 times 7^2 = A, which is 147
        
                    
             
        
        
        
Answer:
take advantage of the Union's low morale
Explanation:
Hoping to take advantage of the Union's low morale and seeming ineptitude, Lee chose to push his army north across the Potomac and into Maryland 
 
        
             
        
        
        
He needed to avoid fighting a European war war on his eastern front
        
             
        
        
        
Answer:
A) england
Explanation:
As Britain increasingly colonised more and more African countries, the British had become the dominant power along the coast, and they began annexing and laying claim to territory gradually.
 
        
                    
             
        
        
        
The first state to secede from the Union in 1860 was South Carolina. Hope this helps.