Write and evaluate the expression. then, check all that apply. eight increased by a number; evaluate when n = 5.3 first, write an expression. the correct expression is n + 8. the correct expression is 8n. second, substitute 5.3 for the variable, n. third, simplify by adding 5.3 and 8. third, simplify by multiplying 5.3 and 8. the answer is 42.4. the answer is 13.3.

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

Which shows the correct lengths of side c in both scales? scale 1: 45 m; scale 2: 60 m scale 1: 60 m; scale 2: 45 m scale 1: 36 m; scale 2: 27 m scale 1: 27 m; scale 2: 36 m mark this and return save and exit

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function