Rafi and Marcy each want to run for president of their school's student body council. In order to do so, they must collect a certain number of signatures and get a nomination. So far, Rafi has 23 signatures, and Marcy has 24. Rafi is collecting signatures at an average rate of 3 per day, whereas Marcy is averaging 2 signatures every day. Assuming that their rate of collection stays the same, eventually the two will have collected the same number of signatures. How many signatures will they both have? How long will that take?