last year, cayman corporation had sales of $26 million, total variable costs of $15 million, and total fixed costs of $5,000,000. in addition, they paid $4 million in interest to bondholders. cayman has a marginal tax rate of 21 percent. if cayman's sales increase by 15%, what should be the increase in operating income

Brian has just finished college. he wants to set up a small business to make and sell fireworks. he registers his company and acquires a license from the government. he finds that most of his competitors are selling fireworks at an extremely low price. he would like to make more money, so he decides to innovate and develop better fireworks. he sells his fireworks at a higher price, and they are a huge hit with the customers. after a few years, he earns enough profit to set up a bigger fireworks factory that complies with the government’s health and safety regulations. he even starts exporting fireworks overseas. which type of economy does this scenario describe?