Answer:
The subtraction expression can be used to find the new position of the fish=-10.2-12.85.
Step-by-step explanation:
Given
A fish swimming 10.2 feet below the surface of the water
fish swimming the distance in water=-10.2 feet
10.2 feet take negative because the fish swimming below the surface of the water.
Then , It descends the another distance in water=-12.85 feet
12.85 feet take also with negtaive sign because the fish moving in downward direction.
Now, the expression can be used to find the new position of the fish
= -10.2 + (-12.85)
The subtraction expression can be used to find the new position of the fish
=-10.2-12.85
By using the rule when positive number is multiplied by negative number then the answer is negative.
The new position of fish=-23.05 feet.
