Last year the cost of a season ticket for a Rugby club was £370 This year the cost of a season ticket for the club has been increased to £450
Write down the increase in the cost of a season ticket as a fraction of last
year's cost.

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