Is 13/6 rational or irrational ?

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15

43lbs of tomatos cost $387. how much would 41lbs cost

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.