Chapter 14.1, Problem 60ES

a.

To determine

The cost of removing 20% of the pollutants from the bayou

b.

To determine

The cost of removing 60% of the pollutants from the bayou and then 80% of the pollutants

c.

To determine

The value $f\left(90\right)$ , then $f\left(95\right)$ and then $f\left(99\right)$ what happens to the cost as x approaches 100%

d.

To determine

The domain of the function f