Which are independent events? check all that apply. rolling a number cube twice picking 2 marbles from a bag, without replacement choosing a meal/drink combination flipping a coin four times picking 2 cards from a deck, without replacement

Matt and brian were solving a system of equations. they both noticed that the two lines had the same slope. brian said that because each line in the system had the same slope, the two lines had to be parallel, which meant the solution to the system was "no solution" matt disagreed, and said they should also look at the y-intercepts before determining how many solutions there were. who is correct?

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys