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

Suppose there are three types of consumers who attend concerts at your university’s performing arts center: students, staff, and faculty. each of these groups has a different willingness to pay for tickets; within each group, willingness to pay is identical. there is a fixed cost of $1,000 to put on a concert, but there are essentially no variable costs. for each concert: i. there are 140 students willing to pay $20. (ii) there are 200 staff members willing to pay $35. (iii) there are 100 faculty members willing to pay $50. a) if the performing arts center can charge only one price, what price should it charge? what are profits at this price? b) if the performing arts center can price discriminate and charge two prices, one for students and another for faculty/staff, what are its profits? c) if the performing arts center can perfectly price discriminate and charge students, staff, and faculty three separate prices, what are its profits?