1. Active Company accumulated the following data for a delivery truck. Required: a) Determine the equation to predict total costs for the delivery truck. b) Calculate the total costs be if 12,187 miles were driven. 2. When the Tom-Tom Company's controller was asked to budget the cost of manufacturing supplies for the next year, she plotted supplies cost and units produced by month for the year. She then drew a regression line through the point she plotted for November when the supplies cost was RM21,000 and 5,000 drum sets were produced. Required: If the regression line intersected the Y axis at RM6,000, determine the equation of the regression line. 3. Travis Inc. employed several maintenance engineers to keep the equipment running in peak condition. Over the past eight months, Travis incurred the following maintenance cost for these engineers. Plant activity is best measured by direct labor hours. Required: Using the high-low method, determine the fixed and variable components of the maintenance costs