To determine which expression represents the phrase "Maren increases the number of servings by six," let's break down the phrase:
1. Identify the original quantity: The original quantity is referred to as "the number of servings," which can be denoted by [tex]\( n \)[/tex].
2. Identify the action being taken: The word "increases" indicates addition.
3. Identify the quantity of the increase: The increase is by six.
Combining these elements, we need to add six to the original number of servings, [tex]\( n \)[/tex]. Mathematically, this can be written as:
[tex]\[ n + 6 \][/tex]
Therefore, the expression that represents the phrase "Maren increases the number of servings by six" is:
[tex]\[ n + 6 \][/tex]
Hence, the correct option is:
[tex]\[ n+6 \][/tex]