Nis an example of select all that apply.
a variable
a constant
a term
an expression

The answers are A. Variable, C. Term, and D. Expression (trust me I just did this lesson lol)

Step-by-step explanation:

A, variable, a term.

Step-by-step explanation:

We are asked to complete the given sentence.

n is an example of .

We know that a variable is a symbol or letter that represents a value. The value of variable is not constant.

Since n is a letter, therefore, n represents a variable.

We know that a constant stands for a value that does not change. Since n is a variable, so we can substitute any value in place of n. Therefore, n is not a constant.

We know that term is a single number, variables or product of number and a variable.

Since n is a variable, therefore, n is a term as well.

We know that an expression has two or more terms. Therefore, n is not an expression.

12cm

the answer is d