Answers: See each part below:
A) The positive values are: 3.98, 51.02, 38.52, 12.70
   The negative values are: -5.23, -5.22, -3.50, -4.39
B) For the order, we have to go from the furthest negative to largest positive.
They are: -5.23, -5.22, -4.39, -3.50, 3.98, 12.70, 38.52, 51.02
C) To find the total, start with 98 and add on the 106.22 in deposits, then subtract the 15.34 in withdrawals.
98 + 106.22 - 15.34 = $188.88