Lisa knit a total of 35 centimeters of scarf over 5 nights. how many nights will lisa have to spend knitting in order to knit a total of 98 centimeters of scarf. this is a unit rate word problem question

The table shows a pattern of exponents. what is the pattern as the exponents decrease?

Which segments are congruent? o jn and ln o jn and nm o in and nk onk and nm

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