(tco e) which is true regarding the sale of a personal residence? group of answer choices exclusions are available up to $250,000 for single filers if requirements are met. the gain is deferred if you purchase a home of equal or greater value. it is treated as a like-kind exchange. the gain is tax-free for taxpayers 55 or older.

Four key marketing decision variables are price (p), advertising (a), transportation (t), and product quality (q). consumer demand (d) is influenced by these variables. the simplest model for describing demand in terms of these variables is: d = k – pp + aa + tt + qq where k, p, a, t, and q are constants. discuss the assumptions of this model. specifically, how does each variable affect demand? how do the variables influence each other? what limitations might this model have? how can it be improved?