$1)$ How can financial functions $($e$.$g$.,$ PMT$,$ PV$,$ FV$)$ assist in creating accurate financial models?

$2)$ What role do data tables and amortization schedules play in financial decision$-$making?

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a$)$ Share an example of how you have used $($or could use$)$ financial functions, data tables, or amortization schedules in a real$-$world scenario. This could include personal budgeting, business planning, or loan calculations.

b$)$ Highlight one advantage and one challenge of using these tools in financial analysis.