Mira drove 180 miles in 3 hours. If she drove at a constant speed, what speed was she driving? Can you plz help me fast

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

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

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1