Cat runs along a straight line (the x-axis) from point A to point B to point C, as shown in the figure. The distance between points A and C is 5 m, the distance between points B and C is 18 m, and the positive direction of the x-axis points to the right. The time to run from A to B is 42 sec, and the time from B to C is 11 sec. As the cat runs along the x-axis between points A and C what is its average speed? Write your answer into 3 Significant Figures.