Sabine rode a passenger train miles between 11:30 and 5:15 pm to visit a friend in a different city What equation can Sabine use to find the average speed of the train in miles per hour while she was riding?

F. a fair coin is thrown in the air four times. if the coin lands with the head up on the first three tosses, what is the probability that the coin will land with the head up on the fourth toss? a. 0 b. 1/16 c. 1/8 d. 1/2