To solve this problem we need to transform the expression written in an algebraic form to a verbal statement.
In this expression, first of all we can notice that the operation given is a sum.
One of the numbers is 4 and the other number is represented by the letter k. Since we are not given any conditions on the k, we could say that k is any number (although in math, the k usually represents an integer, so we'll consider k to be an integer).
Thus, 4 + k would be expressed as "the sum of 4 and an integer"
