A restaurant sells a total of 50 meals and drinks. The meals cost $5 and the drinks cost $2 and sold a total of $145. How many meals did it sell? How many drinks did it sell? Please show work... i'll give you a 5-star rating, and brainliest 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