Gabi has earned $54 babysitting the past two days. She worked 1 3/4 hours yesterday and 4 1/4 hours today. If Gabi is paid the same amount for every hour she works, how much does she earn per hour to babysit? *

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