11 Part 9 of 10 10 points eBook Required information Foundational Exercises [LO2, LO3] [The following information applies to the questions displayed below.] Phillips Company manufactures air-conditioning units for commercial buildings and has noticed considerable variation in shipping expenses from month to month as per the data below: Total Shipping Month January Units Shipped $ 2,160 Expense Print References February March April May June July 4452368 $ 3,060 $ 2,550 $ 1,284 $ 2,160 $ 2,940 $ 4,224 Foundational 3-13 13. Estimate variable shipping expenses to ship 12 air conditioners if the shipping company reduces the variable cost per unit by 10% for each unit shipped in excess of 10 units. Variable shipping expenses