The oil is the limiting reactant.
For this recipe, we are able to only make 2 batches with the ingredients that we have.
It would take: 4 cups of flour, 6 eggs and 2 tbs of oil.
We have enough for each of this. However, if we try to make more, we don't have any more oil that would be needed.
So all you have to do is multiply 400 times 400 which is 160,000 and divide 169,000 to 2 which is 80,000
Answer for 20. is
20.answer-22
Yes, 11.25 per song is a unit rate because it is for each song.