Bryant and Darrell both plan to run for a spot on the school board in their city. They must each collect a certain number of signatures to get their name on the ballot. So far, Bryant has 32 signatures, but Darrell just started and doesn't have any yet. Bryant is collecting signatures at an average rate of 7 per hour, while Darrell can get 15 signatures every hour. 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 many hours will have gone by?