Prepare journal entries to record the following transactions involving the short-term stock investments of Duke Co., all of which occurred during the current year. a. On March 22, purchased 780 shares of RPI Company stock at $21 per share. Duke's stock investment results in it having an insignificant influence over RPI. b. On July 1, received a $3 per share cash dividend on the RPI stock purchased in part a. c. On October 8, sold 390 shares of RPI stock for $31 per share.