1. The problem statement, all variables and given/known data 2.) if jimmy piles his baseball cards in stacks of 4, then there is 1 left over. if he piles them in stacks of 7, there are 4 left over. If he piles them in stacks of 9, there are 6 lefty over. If he piles them in stacks of 10, there are 7 left over. compute the smallest amount of baseball cards Jimmy could own. 2. Relevant equations maybe using LCM? 3. The attempt at a solution I spent 1 hour trying to figure out the solution and the only things I could figure out were that the ones digit has to be 7. I spent the rest of my time testing numbers with my calculator. However, if this was the actual competition, I wouldn't have a calculator and I would only have 3-4 minutes to solve it. so I have no clue.