Elinore is asked to invest $5000 in a friend's business with the promise that the friend will repay 5500 in one year's time. Elinore finds her best alternative to this investment, with similar risk, is one that will pay her 5400 in one year's time. U. S. securities of similar term offer a rate of return of 6%. What is the opportunity cost of capital in this case? A. 6% B. 8% C. 9% D. 10%

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?