Jason and David each decide to collect baseball cards. Jason has 37 cards and David has 42 cards to begin with. Jason decides to buy 4 more cards each week and David decides to buy 3 each week. A - (blank 1) Write an expression for the number of cards that Jason has, given the number of weeks (w) that he collects. B - (blank 2) Write an expression for the number of cards that David has, given the number of weeks (w) that he collects. C - (blank 3) How long (in weeks) will it take for Jason and David to have the same number of baseball cards?