Home town grocery has invested in yogurt stands for its stores. the investment cost the company $100,000. variable materials, preparation, and marketing costs are expected to be $.60 a unit and fixed costs are estimated at $6,000 a year. if actual sales were 20,000 servings, what would the roi be at a sales price of $1.70?

Martha is one producer in the perfectly competitive jelly industry. last year, martha and all of her competitors found themselves earning economic profits. if there is free entry and exit, what do you expect to happen to the number of suppliers in the industry and the price of jelly? the number of suppliers will increase, and the price of jelly will fall. the number of suppliers will decrease, and the price of jelly will increase. the number of suppliers will increase, and the price of jelly will increase. the number of suppliers will decrease, and the price of jelly will fall.