Circletown's limits form a perfectly circular shape. It has a population of 20{,}00020,00020, comma, 000 and a population density of 480480480 people per square kilometer. What is Circletown's radius?
Round your answer, if necessary, to the nearest hundredth.

In a school 2/3 of the students study a language of those who study a language 2/5 study french

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.