Add and Simplify 9/16 1/2

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

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

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4