I need help with #2

A six-sided die is rolled four times. Let the random variable x count the number of 6's that are rolled. 1) Show that this process is a binomial process by verifying the four conditions. 2) Calculate the flowing probabilities (round to 3 decimal places): a) P(x = 0) b) P(x = 1) c) P(x = 2) d) P(x = 3) e) P(x = 4)