PLSSS HELP Select all the expressions that will result in a rational number.

Group of answer choices

: 3 4/5 - âš5/7

: 3 4/5 x âš5

: 3 4/5 Ă· âš5/7

: 3 4/5 x âš16/2

: 3 4/5 + âš16/2

Joseph haydn pet store offers wide variety of leashes for dogs. the store purchases one popular type of leash from its manufacturer for $4.38 each. joseph haydn pets marks up leashes at a rate of 238% of cost. what is the retail price of the popular leash?

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

5/6+7/8what is the answer sealsdbdbshd