identify the scenarios as examples of elastic, inelastic, or unit elastic demand. a. when ruko, a device used to stream movies at home, increases prices by 51 percent, total revenue decreases by 59 percent. b. when cinema supreme decreases ticket prices by 19 percent, total revenue does not change. c. when bluebox, a streaming service for foreign television shows and movies, increases its prices by 59 percent, total revenue increases by 22 percent.