1. Build a multiple linear regression model to predict Monthly_Sales_Revenue. What is the equation of the model? 2. What percentage of the total variation in Monthly_Sales_Revenue is explained by the regression model. 3. Which independent variables are statistically significant at the 5% level? What does that imply for management decision-making? 4. Based on your estimated regression model, what recommendations would you give to increase monthly sales revenue? 5. Predict sales revenue if: o Advertising spend = $60,000 o Number of sales reps = 12 o Customer satisfaction score = 9.5