Question 78789

Production costs are how much it costs to produce the flag

That is a set up cost of $200 for each design
We do not know how many designs, so let it be a variable D

There is a manufacturing cost of $12 for each flag
We do not know how many flags, so let it be a variable F

It looks to me like the production cost is then 200 D + 12 F

If you want to be completely honest and truthful you put in the amount sold!
It would -$20 when they sell a flag.  Because if you sell a flag
and get $20 it is the OPPOSITE of being sold a flag and paying
$20.  Let that be -$20 * S if you want

The holistic answer is 200D + 12 F - 20 S but I doubt that is the answer that your teacher is looking for.  He probably does not want the sales amount to be thrown in with the production cost amount.  I am just putting this in to be instructive.  Hope this helps!