What is 11/20 as a percent

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)