Who likes school cuz i hate school

Alarge rectangle is divided into four smaller rectangles.

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

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?