Pipe a fills a tank in 9 hours. pipe b fills the tank in 6 hours. how long would it take both pipes to fill the tank

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *

Factor the polynomial, if possible. if the polynomial cannot be factored, write prime. 9n^3 + 27n^2 – 25n – 75

Find the solution on the interval [0, 2pi)