Dylan Flaherty, marketing clerk for TipTop Marketing Agency, recorded the following information for last year: He would like to be able to estimate customer service costs using the number of customers as the basis for estimation. However, because he has never taken a course in managerial accounting, he does not know how to set up a cost equation. He has therefore approached you for help. Required: 1. Set up a cost equation for monthly customer service costs using the high-low method. 2. Using the equation from part (1), compute the estimated customer service costs if the number of customers is expected to be 560 . 1. Set up a cost equation for monthly customer service costs using the high-low method. 2. Using the equation from part (7), compute the estimated customer service costs if the number of customers is expected to be 560 . 3. You also used the least-squares regression method to do the analysis of the costs; the analysis resulted in the following output: Set up a cost equation using the above numbers. (Round the "Fixed cost" to the nearest dollar amount and "Varlable cost" to 2 decimal places.J