I only have today to get help please answer if you can I dont know what my professor is asking. ( we just learned about charts) You and a friend are discussing the good news that the annual number of deaths due to a certain disease has been decreasing over the last decade. Your friend says that it is even more encouraging that the rate of decrease of this annual number is also decreasing. How would you reply?

Enter the missing numbers in the boxes to complete the table of equivalent ratios of lengths to widths. ? 18 8 ? 10 30 12 ?

Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers. a) one of the 400 passengers is selected uniformly at random. let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem

We just started the introduction into circles and i have no idea how to do this.