Solve each generic-rectangle puzzle. Write your answer in the form (total length)(total width) = sum of individual area parts = total area.  

1. 	top edge left$40$	top edge right, blank
   left edge top, blank	interior top left, blank	interior top right$180$
   left edge bottom$+7$	interior bottom left, blank	interior bottom right$63$

   Hint (a):

   In order to solve this rectangle, it might be useful to find the length of side $A$ first. Do this using the known information, $7$ times $A$ is equal to $63$. Can you find what $A$ equals with division?

   More Help 1 (a):

   If $A$ equals $9$, can you find what side $B$ is? Use division and the knowledge that $A$ ($9$) times $B$ is equal to $180$.

   $\frac{180}{9}\;=\;\textit{B}$

   More Help 2 (a):

   Once you find that $B$ is equal to $20$, you know that the total length equals $49$ and the total width equals $27$.
   Can you fill in the rest of the rectangle and write your answer in the form originally provided in the instructions?

   	top edge left$40$	top edge right$\color{red}A$
   left edge top$\color{red}B$	interior top left, blank	interior top right$180$
   left edge bottom$+7$	interior bottom left, blank	interior bottom right$63$

2. 	top edge left$500$	top edge middle, blank	top edge right blank
   left edge top, blank	interior top left $15000$	interior top middle, blank	interior top right$90$
   left edge bottom$+9$	interior bottom left, blank	interior bottom middle$720$	interior bottom right, blank