12.25m^2 because you’re finding area
A=l•W
A=3.5•3.5
A=12.25
        
                    
             
        
        
        
A=<4.60,7.20>
b=<5.10,2.70>
The scalar product, or the inner product, or the dot-product, is by summing the products of the respective directions, 
a.b=4.6*5.1+7.2*2.7
=23.46+19.44
=42.9
        
             
        
        
        
adding 320,294,265 and 301=1180
4 divided by 1180=answer 295
 
        
                    
             
        
        
        
 what dou you need?????????