Use the cone formula:
And so:

5654866.7 / 12000 = 471,
So the answer is 471 weeks.
Hope this helps.
Answer:
Oops.
Step-by-step explanation:
Didn't mean to answer this

So, F(X) = ( X - 5 ) ( Y - 2 )
When you wanna factor out some equation, try to spot things that are similar. Factoring is always a process of trial and error, but as you get more experience it will just get easier.
For example, in your question when you see y appear in many terms try to factor it out, and then produce what goes inside parenthesis.
It depends you mean per day or if so..... it is 720