George Caloz & Frres, located in Grenchen, Switzerland, makes luxury custom watches in small lots. One of the company's products, a platinum diving watch, goes through an etching process. The company has recorded etching costs as follows over the last six weeks: Week 1 Units 6 Total Etching Cost $ 21 2 7 23 3 11 28 4 12 27 5 13 28 6 14 63 29 $ 156 For planning purposes, management would like to know the variable etching cost per unit and the total fixed etching cost per week. Exercise 6A-5 Part 3 (Algo) 3. If the company processes fifteen units next week, what would be the expected total etching cost? (Round your intermediate calculations and final answer to 2 decimal places.) Expected total etching cost