Answer:
There are 9,999 positive whole numbers with 4 or less digits or less and one whole number which is neither positive nor negative.
This gives us 9,999+9,999+1 or 19,999 , whole numbers composed of 4 digits or less.
The answers for edunuity are 1,3,5,6 you're welcome.
Zero would mean the sea level. Since three miles below sea level is -3, and 0-3 is -3.
