Activity 1: Can you show me the way? Suppose you secured your bike using a combination of lock. Later you realized that you forgot the 4-
digit code. you only remembered that the code contains the digits 1, 3, 4, and 7,
1. List all the possible codes out of the given digits.
2. How many possible codes are there?
3. what can you say about the list you made?​

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 of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account