Herbie Bittman, age 17, executed a contact for the purchase of a pleasure car from a used car dealer or $2000. When Herbie changed his mind and attempted to return the car three months later the sales manager, Sam Dichter, said, "The contract is legally valid and all sales are final. I am not taking the car back." Herbie, who has not turned 18, come to you for advice. Was Dichter's statement legally correct? Why or why not?

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?