What is the value of 5(x+2)−4(x+1) when x=1.5

Which term best describes the association between variables a and b

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

For each proportion find the unknown number x 1/5/8=×/15