The probability of rolling a 6 on a number cube is 1/6. The probability of rolling a 6 twice in a row is (1/6) 2 = 1/36 . a. Write an expression that represents the probability of rolling a 6 n times in a row. An expression is . b. What is the probability of rolling a 6 four times in a row? Write your answer as a fraction in simplest form. The probability is . c. What is the probability of flipping heads on a coin five times in a row? Write your answer as a fraction in simplest form. The probability is