Can someone help? A hill used for snowboarding has a vertical drop of 3500 feet. The angle the run makes with the ground is 18 degrees. Estimate the length of the run, r. Show answer to nearest tenth. show comma in answer if needed

Length = ? ft.

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