Using the data in the Excel file Weddings, construct scatter charts to determine whether any linear relationship appears to exist between (1) the wedding cost (X) and attendance (Y), (2) the wedding cost (X) and the value rating (Y), and (3) the couple's income (X) and wedding cost (Y) only for the weddings paid for by the bride and groom. Then find the best-fitting functions using the Trendline tool for each of these charts.

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