Mr young has 30 times many pencils as jack .the whole schools has 2,000times, if jack has 2pencils how many pencils does the mr young have

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

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

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?