Answer:
The answer would be -a
Step-by-step explanation:
In the examples,
5 + (-5) = 0
-1.33 + 1.33 = 0
THat means there will be a negative then a positive, or a positive then a negative.
INVERSE is the key word in this problem.
Answer:
Sally ends at 3 feet below zero point.
Step-by-step explanation:
Let be
the height with respect to zero point, which is represented by the following sum:

Where:
- i-th travelled height, measured in feet.
In addition, positive sign means ascension, whereas negative sign means descent.
The statement can be translated into the following mathematical identity:



Sally ends at 3 feet below zero point.