### Q1: What is a simple example of using DOM manipulation to update an account balance in a finance application?  
### Q2: How can you dynamically change multiple elements on a webpage using JavaScript?  
### Q3: What are some advanced techniques you could use to optimize DOM manipulation for better performance in a finance application?  
### Q4: Why is event handling important in creating a responsive interface for a financial application?  
### Q5: What types of user interactions should be prioritized for event handling in a finance application, and what effects do they have on user experience?  
### Q6: How could you implement a complex event handling mechanism to track user actions across multiple components in a financial app?  
### Q7: How can you effectively communicate the purpose of a form to users within a finance application?  
### Q8: What strategies can be utilized to provide real-time feedback to users when they interact with elements in a finance platform?  
### Q9: In what ways could you enhance collaborative communication when designing interactive features for a finance application with a team?