What is the perimeter of a rectangular room that is 9 feet by 10 feet?

Name the most appropriate metric unit for each measurement

Aphrase is shown read the phrase and give me the answer

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