The sequence you provided follows a consistent pattern where each term decreases by 25. Let's break it down:

• 50 → 25 (decrease by 25)
• 25 → 0 (decrease by 25)
• 0 → -25 (decrease by 25)
• -25 → -50 (decrease by 25)

Following this pattern, the next term would be:

$-50 - 25 = -75$

Thus, the missing term is -75.

Would you like more details or have any questions?

Here are some related questions for further exploration:

1. What is the general formula for this arithmetic sequence?
2. How would you find the 10th term in this sequence?
3. Can this pattern be represented as a linear equation?
4. How can you determine the sum of the first 10 terms in this sequence?
5. How does the concept of a common difference apply to arithmetic sequences?

Tip: In an arithmetic sequence, the difference between consecutive terms is constant. This difference is called the "common difference."