1/16
the probability of flipping head on the first flip is 1/2
the probability of flipping head on the second flip is 1/2 of that, or 1/4
the probability of flipping head on the third flip is 1/2 of that, or 1/8
the probability of flipping head on the fourth flip is 1/2 of that, or 1/16
I think it’s c sorry if it’s wrong
A = 57
45 + 12 = 57
57 - (-12) = 45
Answer:
Please refer to the attachment