Write in point slope form an equation of the line that passes through the point (3,0) with slope 2/3

Match each expression with its simplified form.

The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. the front two wheels are six feet apart. what is the number of feet in the path traced by the inside front wheel in one trip around the circle? express your answer in the form "k \pi", where k is an integer.

Math i have no idea how to do a and b