In the hallway of Jefferson Middle School, there is a $30$-foot distance between classroom doors. From her classroom door, Rebecca walked down the hall $17$ feet, then turned around ($180°$) and walked back $6$ feet to use the drinking fountain.

How far is she from her starting point? When she turns again ($180°$) to continue to the next classroom, how far does she have to walk? Draw a diagram to show Rebecca's movement and clearly explain your thinking.