To solve this problem, let's track Anessa's money step-by-step based on the transactions given:

1. Starting amount: Anessa has $5.

2. Granola bar purchase: She spends $0.75. $5 - 0.75 = 4.25$

3. Movie ticket purchase: She spends $3.50. $4.25 - 3.50 = 0.75$

4. Money received from brother: She receives $2. $0.75 + 2 = 2.75$

5. Arcade spending: She spends $1.25. $2.75 - 1.25 = 1.50$

Final amount: At the end of the weekend, Anessa has $1.50.

Would you like a detailed breakdown or have any further questions?

Here are some related questions to deepen understanding:

1. If Anessa received an additional $1 from another friend, how much would she have at the end?
2. What would her balance be if she skipped the movie?
3. How much would she have left if she didn’t spend anything on the granola bar?
4. If her brother gave her $5 instead of $2, how much would she have?
5. If the arcade expense was increased by $1, what would her final balance be?

Tip: When solving word problems, it's useful to break down each step to avoid errors.