Answer:
The answer is option 1.
Step-by-step explanation:
Firstly, you have to elaborate the expression :


Next you have to take out the common factors and factorize it :



The number would be 12. If you substitute you will find that 12 is correct.
9.63 as a fraction is 9 63/100
November(350,489), October(350,080), then December(305,939)
You just add the LxW and for area you multiply LxWxLxW