Sweet Southern Tea provided the following expense information for May: Assembly-line workers' wages Caps for tea bottles Reconfiguring the assembly line Customer support hotline Delivery expenses Depreciation on factory equipment Plastic bottles to package tea Salaries of salespeople Salaries of research scientists Customer toll-free order line 13 $72,100 3,700 125,600 10,600 20,400 75,100 52,900 63,700 70,700 6,100