Help ASAP 4 testtt
last 2 :)
19 and 20
IM DESPERATEE

The perimeter of a rhombus with a side of 6 is 24

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 expression is equivalent to the expression shown?