Armstrong Company produces a variety of bicycles. One of its plants produces two bicycles: a mountain model and a racing model. At the beginning of the year, the following data were prepared for this plant: Mountain Racing Quantity 250,000 125,000 Selling Price $1,200 $1,000 Unit Prime Cost $ 400 $ 500 In addition, the following information was provided so that overhead costs could be assigned to each product: Raci Activity Name Activity Driver Activity Cost ng Mountain Machini Machine hours $20,000, 000 250, 000 ng 250,000 Enginee ring Engineer ing hours $ 8,000,00 0 75,0 00 50,000 Packing Packing orders $ 3,500,00 0 50,0 00 125,000 A. B. Calculate the activity rate for machining. Calculate the activity rate for engineering. Calculate the activity rate for packing. C