The probability of rolling a sum not less than 8 is?

Find the probability of each event. Rolling a sum of 4 on one roll of three dice

Find the probability of each event. Drawing 5 orange cubes from a bowl containing 5 orange cubes and 1 beige cubes

Assume that the probability that an airplane engine will fail during a torture test is 12and that the aircraft in question has 4 engines. Find the probability that all engines will survive the test.