The map of a walking trail is drawn on a coordinate grid with three points of interest. The trail starts at R(-3, 2) and goes to S(2, 2) and continues to T(2, -5). The total length of the walking trail is ___ units. (Input whole numbers only.)

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min