Which value is NOT equivalent to the others?

1) 3+3+3+3

2) 34

3) 32×32

4) 3×3×3×3

Thank you! This question is from Imagine Math

49xy +34y - 72z. determine the degree of the polynomial

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

Twelve less than a number is at most 20