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 1,000 shares of RPI Company stock at $10 per share. Duke's stock investment results in it having an insignificant influence over RPI. b. On July 1, received a $1 per share cash dividend on the RPI stock purchased in part a. c. On October 8, sold 50 shares of RPI stock for $15 per share.

Total marketing effort is a term used to describe the critical decision factors that affect demand: price, advertising, distribution, and product quality. define the variable x to represent total marketing effort. a typical model that is used to predict demand as a function of total marketing effort is based on the power function: d = axb suppose that a is a positive number. different model forms result from varying the constant b. sketch the graphs of this model for b = 0, b = 1, 0< b< 1, b< 0, and b> 1. (we encourage you to use excel to do this.) what does each model tell you about the relationship between demand and marketing effort? what assumptions are implied? are they reasonable? how would you go about selecting the appropriate model?