Consider x^4+8xy^2=-135 find dy/dt when x=3, y=-3 and dx/dt=2

Not sure if I am right by what you are asking, but 42 and 70 are both able to be divided by 7. 42/7=6 and 70/7=10 . Therefor, each package of baseball cards will have 6 cards in them and there will be 7 packages. On the other hand, there will be 10 football cards in each package and there will be 7 packages as well. 
I'm sure this is the correct answer you are looking for. If you need any further help let me know!