Three pipes a, b and c take 24, 36 and 32 hours to fill a pool, respectively. how long would it take the three pipes to fill the pool if pipe b is turned on 3 hours after pipe a and pipe c is turned on 1 hour after pipe b?

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online