Abag contains 42 red marbles, 6 white marbles, and 8 gray marbles. you randomly pick out a marble, record its color, and put it back in the bag. you repeat this process 224 times. how many white or gray marbles do you expect to get?

Create a real-life situation and create a system and show how it might be modeled algebraically with a system of equations (or inequalities) show all work include a few sentences explaining the situation, your variables of choice and what each represents, and how you would set it up and solve it algebraically. !

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

Pls! does anybody know a shortcut for answering these types of questions in the future?