helpp me please!! I don’t know how to do this I would really appreciate if you did brainlest to whoever gets it correctly

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Lines b and c are parallel. what is the measure of 2? m2 = 31° m2 = 50° m2 = 120° m2 = 130°

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