Answer: [tex]-66[/tex]
Step-by-step explanation:
It is important to remember that the the Set of Integers numbers contains the positive numbers, the negative numbers and zero.
By definitiion, the positive numbers are those numbers that are greater than zero, and the negative numbers are those numbers that are less than zero.
Let be 0 the sea level.
The elevation above the sea level must be represented with a positive number, because it is greater than zero; and the elevation below the sea level must be represented with a negative number, because it is less than zero.
In this case, you know that the elevation of the Salton Sea in California is 66 meters below sea level, therefore the Integer that represents this elevation in meters must be negative.
Then, this is:
[tex]-66[/tex]
