1. The problem statement, all variables and given/known data http://img25.imageshack.us/img25/1937/38821874.jpg [Broken] 2. Relevant equations in the picture 3. The attempt at a solution im really confused! im not sure if i did it right in the picture but i pretty much guessed them all.. (with thinking obviously) the first one is easy because its just multiplying the whole equation by q.. dq/dt is the product/day right? so 180.. for some reason, i think that q=40 and i cannot explain why not 180 can someone please explain the problem to me? plzzzz!