At December 31, 2019, Columbus Inc. had 3,000,000 common shares outstanding. An additional 500,000 common shares were issued on April 1, 2020, and 250,000 more on July 1, 2020. On October 1, 2020, Marion issued 12,500, $ 1,000 par value, 8% convertible bonds. Each bond is convertible into 20 common shares. No bonds were converted in 2020. What is the number of shares to be used in calculating 2020 basic earnings per share and diluted earnings per share, respectively

scenario: hawaii and south carolina are trading partners. hawaii has an absolute advantage in the production of both coffee and tea. the opportunity cost of producing 1 pound of tea in hawaii is 2 pounds of coffee, and the opportunity cost of producing 1 pound of tea in south carolina is 1/3 pound of coffee. which of the following statements is true? a. south carolina should specialize in the production of both tea and coffee. b. hawaii should specialize in the production of tea, whereas south carolina should specialize in the production of coffee. c. hawaii should specialize in the production of coffee, whereas south carolina should specialize in the production of tea. d. hawaii should specialize in the production of both tea and coffee.