Karen White is opening a small flower shop that will focus primarily on delivery, though it will provide a small showroom for walk-in customers. A local florist is retiring and selling her small flower shop to Karen for $152100. The shop has a remaining life of 20 years. Karen expects to have incremental revenues of $84500 per year and pay approximately 60% of revenues in operating costs. What is the payback period for Karen's flower shop? 7.00 years O 3.00 years 1.80 years 4.50 years