The set $B = \{ 14, 15, 16, 17, 18, 19, 20, 21 \}$ consists of consecutive integers starting from 14 to 21.

We can express this set in set-builder notation as:

$B = \{ x \mid x \in \mathbb{Z}, 14 \leq x \leq 21 \}$

Where:

• $x$ is the element of the set.
• $\mathbb{Z}$ represents the set of integers.
• The condition $14 \leq x \leq 21$ specifies that $x$ is an integer between 14 and 21 (inclusive).

Let me know if you'd like further clarification or have any questions!

Related questions:

1. How can we express a set of even numbers between 10 and 30 in set-builder notation?
2. What is the difference between set-builder notation and roster notation?
3. How would you represent the set of all prime numbers less than 50 in set-builder notation?
4. How would you describe the set of all real numbers greater than 5 but less than 10?
5. What are some examples of using set-builder notation for describing geometric shapes like circles or squares?

Tip:

When using set-builder notation, always make sure to clearly define the properties or conditions that an element must satisfy to belong to the set.