(1) The following data relating to units si assembled by a company, a wholesaler ol la commercial buildings: relating to units shipped and total shipping expense have been y, a wholesaler of large, custom-built air-conditioning units for Month Unit Shipped January February March April May June July Total Shipping Expenses SR 1800 SR 2300 SR 1700 SR 2000 SR 2300 SR 2700 SR 1200 a) using the high-low method, estimate a cost formula for shipping expense. How much the total shipping expenses if the unit shipped is 11. CamScanner