The number of vhs movie rentals has declined since the year 2000 due to the popularity of dvds, as the following table shows. use a graphing calculator to determine the exponential regression equation that best fits the vhs rental data. let x represent the number of years since 2000. year 2000 2001 2002 2003 2004 2005 2006 vhs rentals (in millions) 10.5 7.8 6.3 5.1 4.4 3.6 3.1

Christine went shopping and bought each of her six six nephews a? gift, either a video costing? $14.95 or a cd costing? $16.88. she spent ? $ 97.42 97.42 on the gifts. how many videos and how many cds did she? buy?

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

Can someone me and do the problem plz so i can understand it more better