Johanna was accepted at her college of choice and is moving out of her parents' home and in with a roommate. How can she use this to positively affect her credit score? (5 points) O By avoiding a disagreement with her roommate
By keeping a high GPA
With responsible behavior towards her first landlord
O with a high debt-to-available credit ratio

Which of the following statements is (are) true? i. free entry to a perfectly competitive industry results in the industry's firms earning zero economic profit in the long run, except for the most efficient producers, who may earn economic rent. ii. in a perfectly competitive market, long-run equilibrium is characterized by lmc < p < latc. iii. if a competitive industry is in long-run equilibrium, a decrease in demand causes firms to earn negative profit because the market price will fall below average total cost.