Diego rented a bicycle for four hours. the rental charges a flat fee of $10 and an additional fee of $1.50 per hour . how much did it cost diego to rent a bicycle for four hours

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