The tenth term of arithmetic operation is 68 and the common sequence is 7 find the sum of the sequence

On a piece of paper graph f(x)=5•(0.4)^x

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

Asinusoidal function whose frequency is 1/6pi