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 February March April May June July Units Shipped Expense $ 1,760 $ 2,660 4523 10 00 $ 2,050 $1,224 $ 1,860 $ 2,340 $ 3,264 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. Vanable shipping expenses