A recent poll indicated that about 75% of U. S. households had access to a high -speed internet connection. Suppose 100 households were randomly selected from the United States. How many of the households would you expect to have access to high- speed internet connection?

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?