The correct interpretations of the expression \( n + 5 \) are:
- the total of a number and 5
- 5 more than a number
- the sum of a number and 5
The other options are incorrect interpretations of \( n + 5 \):
- the difference of a number and 5 refers to \( n - 5 \).
- 5 is greater than a number does not accurately express \( n + 5 \).
- 5 less than a number refers to \( n - 5 \).