The normal (accounting) profit in the economy is 5 percent. A firm in a purely competitive industry is earning $5.50 on every $50 invested by its founders. Instructions: Enter your answers as a whole number. a. What is its percentage rate of return? percent b ls the firm earning an economic profit? Yes v f so, how large? percent <. will this industry see entry or exit v d. what be the rate of return earned by firms in once reaches long-run equilibrium percent>