Kiwidale Dairy is considering purchasing a new ice-cream maker.Two models, Smoothie and Creamy, are available and their information is given below (all costs and profits are in dollars):

Smoothie Creamy

First Cost 15,000 33,500

Service Life 14 Years 12 Years

Annual Profit 4,450 10,800

Annual Operating Cost 1,075 3,200

Salvage Value 2,450 5,100