Use the graphs below to answer the following questions about max and ali's journey

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

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x