Math 6

Question Analysis
This question involves a series of addition and subtraction operations with negative numbers in a real - world context of depth.
The main focus is on correctly applying the rules of adding positive and negative numbers to represent changes in position and calculating the cumulative result.

Key Concept Explanation
Descending below sea level is represented by negative numbers, and ascending is represented by positive numbers.
Adding a positive number moves the submarine up (towards the positive direction on the number line representing depth), while adding a negative number (or subtracting a positive number) moves it down further.

Step-by-Step Solution
The submarine starts at -200 meters.
Ascending 75 meters means we add 75 to -200, so -200 + 75 = -125 meters.
Then, it...