2. A ferry boat carries passengers back and forth between two communities on the Peachville River. - It takes \( 30 \) minutes longer for the ferry to make the trip upstream than downstream. - The ferry's average speed in still water is \( 15 \) miles per hour. This equation can be used to determine how many miles apart the two communities are.
What is \( m \) , the distance between the two communities? A. \( 0.5 \) mile B. \( 5 \) miles C. \( 10 \) miles D. \( 15 \) miles