A = L x W
L = W + 3
so equation
A = W (W + 3)
70 = W (W + 3)
or
W (W + 3) = 70
answer
D. last one
W (W + 3) = 70
        
             
        
        
        
Answer:
5; 10; 20.
Step-by-step explanation:
the 1st step is shown with orange colour, described on the right part; the 2d step is shown with blue colour, described on the right part of the picture.
 
        
             
        
        
        
Answer:
5(9+x)
Step-by-step explanation:
5 x 9 = 45 
then if do 5 times x it would look like 5x