EXPLANATION
Let's consider the facts:
a. Traveled = 16 feet
|-16| = 16
The porpoise is 16 feet from the surface of the water.
b. Withdrawal = -$250
|-250| = 250
Chelsea paid the electric company $250 dollars
c. Temperature = -54
|-54| = 54
The temperature is 54 degrees below zero.
d. Distance= 34 miles east
|34| = 34
The distance between Adelphi and Sterling is 34 miles.